504 Gateway time-out

Hi,
I get 504 gateway time-out or 502 error or constantly when accessing our metabase environment on AWS elastic beanstalk. Could you help take a look?

Thanks!

Here is the log,
----------------------------------------
/var/log/eb-engine.log
----------------------------------------
2021/03/10 14:01:12.504290 [WARN] stopProcess Warning: process xray is not registered
2021/03/10 14:01:12.504356 [INFO] Running command /bin/sh -c systemctl stop xray.service
2021/03/10 14:01:12.511756 [INFO] Executing instruction: Run Docker Container
2021/03/10 14:01:12.511776 [INFO] this is the first time deploying app…
2021/03/10 14:01:12.511797 [INFO] detected new app is not docker compose app
2021/03/10 14:01:12.511869 [INFO] Running command /bin/sh -c docker run -d --env-file /opt/elasticbeanstalk/deployment/env.list -v /var/log/eb-docker/containers/eb-current-app:/var/log/metabase 1cdfaa8c1bc7
2021/03/10 14:01:13.231221 [INFO] 19a6c151c2fe0838f936d1c41269450566c51f753194ec97ee5c83bbab16972e

2021/03/10 14:01:18.231464 [INFO] Running command /bin/sh -c docker ps | grep -q 19a6c151c2fe
2021/03/10 14:01:18.341957 [INFO] Clear existing beanstalk iptables rules...
2021/03/10 14:01:18.341992 [INFO] Running command /bin/sh -c iptables-save | grep -v added_by_elasticbeanstalk | iptables-restore
2021/03/10 14:01:18.355513 [INFO] Getting container info...
2021/03/10 14:01:18.355534 [INFO] Running command /bin/sh -c docker inspect 19a6c151c2fe0838f936d1c41269450566c51f753194ec97ee5c83bbab16972e

2021/03/10 14:01:18.452815 [INFO] Writing nginx upstream config...
2021/03/10 14:01:18.454628 [INFO] Running command /bin/sh -c /usr/sbin/nginx -t -c /var/proxy/staging/nginx/nginx.conf
2021/03/10 14:01:18.472509 [INFO] Running command /bin/sh -c cp -rp /var/proxy/staging/nginx/* /etc/nginx
2021/03/10 14:01:18.476881 [INFO] Running command /bin/sh -c systemctl show -p PartOf nginx.service
2021/03/10 14:01:18.486565 [INFO] register process nginx
2021/03/10 14:01:18.486585 [INFO] Running command /bin/sh -c systemctl show -p PartOf nginx.service
2021/03/10 14:01:18.496067 [INFO] Running command /bin/sh -c systemctl daemon-reload
2021/03/10 14:01:18.602649 [INFO] Running command /bin/sh -c systemctl reset-failed
2021/03/10 14:01:18.611864 [INFO] Running command /bin/sh -c systemctl enable nginx.service
2021/03/10 14:01:18.721924 [INFO] Running command /bin/sh -c systemctl show -p PartOf nginx.service
2021/03/10 14:01:18.732556 [INFO] Running command /bin/sh -c systemctl restart nginx.service
2021/03/10 14:01:18.889667 [INFO] Running command /bin/sh -c service iptables save
2021/03/10 14:01:18.944637 [INFO] iptables: Saving firewall rules to /etc/sysconfig/iptables: [  OK  ]

2021/03/10 14:01:18.944654 [INFO] Traffic forward set-up completed.
2021/03/10 14:01:18.944658 [INFO] making STAGING app container current...
2021/03/10 14:01:18.944673 [INFO] Running command /bin/sh -c docker tag 1cdfaa8c1bc7 aws_beanstalk/current-app
2021/03/10 14:01:19.058949 [INFO] Running command /bin/sh -c docker rmi aws_beanstalk/staging-app
2021/03/10 14:01:19.179490 [INFO] Untagged: aws_beanstalk/staging-app:latest

2021/03/10 14:01:19.179572 [INFO] Running command /bin/sh -c systemctl show -p PartOf eb-docker.service
2021/03/10 14:01:19.189832 [INFO] Running command /bin/sh -c systemctl daemon-reload
2021/03/10 14:01:19.298542 [INFO] Running command /bin/sh -c systemctl reset-failed
2021/03/10 14:01:19.308208 [INFO] Running command /bin/sh -c systemctl enable eb-docker.service
2021/03/10 14:01:19.426419 [INFO] Running command /bin/sh -c systemctl show -p PartOf eb-docker.service
2021/03/10 14:01:19.441076 [INFO] Running command /bin/sh -c systemctl is-active eb-docker.service
2021/03/10 14:01:19.449008 [INFO] Running command /bin/sh -c systemctl start eb-docker.service
2021/03/10 14:01:19.542327 [INFO] Running command /bin/sh -c systemctl show -p PartOf eb-docker-log.service
2021/03/10 14:01:19.554485 [INFO] Running command /bin/sh -c systemctl daemon-reload
2021/03/10 14:01:19.692726 [INFO] Running command /bin/sh -c systemctl reset-failed
2021/03/10 14:01:19.701932 [INFO] Running command /bin/sh -c systemctl enable eb-docker-log.service
2021/03/10 14:01:19.842807 [INFO] Running command /bin/sh -c systemctl show -p PartOf eb-docker-log.service
2021/03/10 14:01:19.857144 [INFO] Running command /bin/sh -c systemctl is-active eb-docker-log.service
2021/03/10 14:01:19.873690 [INFO] Running command /bin/sh -c systemctl start eb-docker-log.service
2021/03/10 14:01:20.007082 [INFO] docker container 19a6c151c2fe is running aws_beanstalk/current-app
2021/03/10 14:01:20.007099 [INFO] Executing instruction: Clean up Docker
2021/03/10 14:01:20.007112 [INFO] Running command /bin/sh -c docker ps -aq
2021/03/10 14:01:20.285320 [INFO] 19a6c151c2fe

2021/03/10 14:01:20.285386 [INFO] Running command /bin/sh -c docker images | sed 1d
2021/03/10 14:01:20.492615 [INFO] aws_beanstalk/current-app   latest              1cdfaa8c1bc7        10 seconds ago      367MB
metabase/metabase           v0.35.4             2e98d3eccd2a        9 months ago        367MB

2021/03/10 14:01:20.492657 [INFO] save docker tag command: docker tag 1cdfaa8c1bc7 aws_beanstalk/current-app:latest
2021/03/10 14:01:20.492664 [INFO] save docker tag command: docker tag 2e98d3eccd2a metabase/metabase:v0.35.4
2021/03/10 14:01:20.492677 [INFO] Running command /bin/sh -c docker rm `docker ps -aq`
2021/03/10 14:01:20.877000 [INFO] Running command /bin/sh -c docker rmi `docker images -aq`
2021/03/10 14:01:21.180572 [INFO] restore docker image name with command: docker tag 1cdfaa8c1bc7 aws_beanstalk/current-app:latest
2021/03/10 14:01:21.180602 [INFO] Running command /bin/sh -c docker tag 1cdfaa8c1bc7 aws_beanstalk/current-app:latest
2021/03/10 14:01:21.376519 [INFO] restore docker image name with command: docker tag 2e98d3eccd2a metabase/metabase:v0.35.4
2021/03/10 14:01:21.376546 [INFO] Running command /bin/sh -c docker tag 2e98d3eccd2a metabase/metabase:v0.35.4
2021/03/10 14:01:21.574179 [INFO] Executing instruction: start X-Ray
2021/03/10 14:01:21.574198 [INFO] X-Ray is not enabled.
2021/03/10 14:01:21.574203 [INFO] Executing instruction: configureSqsd
2021/03/10 14:01:21.574239 [INFO] This is a web server environment instance, skip configure sqsd daemon ...
2021/03/10 14:01:21.574244 [INFO] Executing instruction: startSqsd
2021/03/10 14:01:21.574255 [INFO] This is a web server environment instance, skip start sqsd daemon ...
2021/03/10 14:01:21.574260 [INFO] Executing instruction: Track pids in healthd
2021/03/10 14:01:21.574265 [INFO] This is an enhanced health env...
2021/03/10 14:01:21.574279 [INFO] Running command /bin/sh -c systemctl show -p ConsistsOf aws-eb.target | cut -d= -f2
2021/03/10 14:01:21.596809 [INFO] healthd.service eb-docker.service cfn-hup.service eb-docker-log.service nginx.service eb-docker-events.service docker.service

2021/03/10 14:01:21.596835 [INFO] Running command /bin/sh -c systemctl show -p ConsistsOf eb-app.target | cut -d= -f2
2021/03/10 14:01:21.626171 [INFO] 

2021/03/10 14:01:21.630954 [INFO] Executing instruction: Configure Docker Container Logging
2021/03/10 14:01:21.637726 [INFO] Executing instruction: RunAppDeployPostDeployHooks
2021/03/10 14:01:21.637750 [INFO] The dir .platform/hooks/postdeploy/ does not exist in the application. Skipping this step...
2021/03/10 14:01:21.637756 [INFO] Executing cleanup logic
2021/03/10 14:01:21.644498 [INFO] Platform Engine finished execution on command: self-startup

2021/03/10 18:13:53.860529 [INFO] Starting...
2021/03/10 18:13:53.861099 [INFO] Starting EBPlatform-PlatformEngine
2021/03/10 18:13:53.861590 [INFO] reading event message file
2021/03/10 18:13:53.862360 [INFO] no eb envtier info file found, skip loading env tier info.
2021/03/10 18:13:53.862478 [INFO] Engine received EB command cfn-hup-exec

2021/03/10 18:13:55.252575 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-west-1:009758680885:stack/awseb-e-23b4nev9vt-stack/20bdd2d0-76ed-11eb-8d39-0aa66bab8a07 -r AWSEBAutoScalingGroup --region eu-west-1
2021/03/10 18:14:05.968245 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-west-1:009758680885:stack/awseb-e-23b4nev9vt-stack/20bdd2d0-76ed-11eb-8d39-0aa66bab8a07 -r AWSEBBeanstalkMetadata --region eu-west-1
2021/03/10 18:14:12.751544 [INFO] checking whether command tail-log is applicable to this instance...
2021/03/10 18:14:12.751568 [INFO] this command is applicable to the instance, thus instance should execute command
2021/03/10 18:14:12.751573 [INFO] Engine command: (tail-log)

2021/03/10 18:14:12.753043 [INFO] Executing instruction: GetTailLogs
2021/03/10 18:14:12.753052 [INFO] Tail Logs...
2021/03/10 18:14:12.793742 [INFO] Running command /bin/sh -c tail -n 100 /var/log/eb-engine.log


----------------------------------------
/var/log/nginx/access.log
----------------------------------------
172.31.44.205 - - [10/Mar/2021:18:05:45 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:05:47 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:05:51 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:05:53 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:05:55 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:06:00 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:06:02 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:06:15 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:06:17 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:06:26 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:06:28 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:06:30 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:06:30 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:06:32 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:06:45 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:06:47 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:07:00 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:02 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:07:15 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:17 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:19 +0000] "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjIzfSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.Ipekegy9KES866022utZbe_zRtuj254mB8tWCwst2fc HTTP/1.1" 502 559 "https://app-runner.cargoes.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "106.212.115.159"
172.31.12.125 - - [10/Mar/2021:18:07:19 +0000] "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI3fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.zgpyG5ndlWzvhdq3Y060e-z0BcGD2lMY4gqdOXah2TI HTTP/1.1" 502 559 "https://app-runner.cargoes.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "106.212.115.159"
172.31.12.125 - - [10/Mar/2021:18:07:19 +0000] "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI2fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.fDT-1V6g0H9LkaIJj1uzHzS4nhCG_7tYU4U53p93dDc HTTP/1.1" 502 559 "https://app-runner.cargoes.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "106.212.115.159"
172.31.12.125 - - [10/Mar/2021:18:07:19 +0000] "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI0fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.Bp3_p80Z8DFzvWBUGL2VoqoOBbaLDMsAaDyAtHpsuS0 HTTP/1.1" 502 559 "https://app-runner.cargoes.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "106.212.115.159"
172.31.12.125 - - [10/Mar/2021:18:07:19 +0000] "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI1fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.Vq9tHidJjXADcmRPgAhVHjTeDwgYgnyXRtiegrlIT40 HTTP/1.1" 502 559 "https://app-runner.cargoes.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "106.212.115.159"
172.31.44.205 - - [10/Mar/2021:18:07:30 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:07:30 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:32 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:32 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:07:34 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:07:45 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:47 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:07:51 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:07:53 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:07:55 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:08:00 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:08:02 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:08:15 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:08:17 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:08:26 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:08:28 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:08:30 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:08:30 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:08:32 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:08:45 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:08:47 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:09:00 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:09:02 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:09:05 +0000] "GET / HTTP/1.1" 502 559 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "50.34.83.49"
172.31.44.205 - - [10/Mar/2021:18:09:05 +0000] "GET /favicon.ico HTTP/1.1" 502 559 "http://flowanalytics.eu-west-1.elasticbeanstalk.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36" "50.34.83.49"
172.31.44.205 - - [10/Mar/2021:18:09:15 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:09:17 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:09:22 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:09:24 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.44.205 - - [10/Mar/2021:18:09:25 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:09:26 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "52.215.204.142"
172.31.12.125 - - [10/Mar/2021:18:09:27 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:09:29 +0000] "GET / HTTP/1.1" 502 157 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:09:30 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:09:32 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:09:45 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:09:47 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:10:00 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:10:02 +0000] "GET / HTTP/1.1" 502 157 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:10:20 +0000] "GET / HTTP/1.1" 499 0 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:10:22 +0000] "GET / HTTP/1.1" 499 0 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:10:29 +0000] "GET / HTTP/1.1" 200 515088 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:10:36 +0000] "GET / HTTP/1.1" 200 364825 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:10:37 +0000] "GET / HTTP/1.1" 200 364737 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:10:49 +0000] "GET / HTTP/1.1" 200 364793 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:10:50 +0000] "GET / HTTP/1.1" 200 364772 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:11:03 +0000] "GET / HTTP/1.1" 200 364765 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:11:05 +0000] "GET / HTTP/1.1" 200 364799 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:11:19 +0000] "GET / HTTP/1.1" 200 364750 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:11:20 +0000] "GET / HTTP/1.1" 200 364621 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:11:26 +0000] "GET / HTTP/1.1" 200 515103 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:11:35 +0000] "GET / HTTP/1.1" 200 364786 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:11:35 +0000] "GET / HTTP/1.1" 200 364538 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:11:48 +0000] "GET / HTTP/1.1" 200 364531 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:11:50 +0000] "GET / HTTP/1.1" 200 364792 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:12:04 +0000] "GET / HTTP/1.1" 200 364834 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:12:06 +0000] "GET / HTTP/1.1" 200 364840 "-" "ELB-HealthChecker/2.0" "-"
172.31.44.205 - - [10/Mar/2021:18:12:18 +0000] "GET / HTTP/1.1" 200 4885 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:12:18 +0000] "GET / HTTP/1.1" 200 4885 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:12:19 +0000] "GET /owa/auth/logon.aspx HTTP/1.1" 200 4877 "-" "Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)" "162.142.125.96"
172.31.44.205 - - [10/Mar/2021:18:12:26 +0000] "GET / HTTP/1.1" 200 22991 "-" "-" "34.243.180.49"
172.31.44.205 - - [10/Mar/2021:18:12:31 +0000] "GET / HTTP/1.1" 200 4895 "-" "ELB-HealthChecker/2.0" "-"
172.31.12.125 - - [10/Mar/2021:18:12:32 +0000] "GET / HTTP/1.1" 200 4885 "-" "ELB-HealthChecker/2.0" "-"

----------------------------------------
/var/log/nginx/error.log
----------------------------------------
2021/03/10 14:01:19 [error] 4400#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.26.179, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 14:01:19 [error] 4400#0: *3 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 14:01:28 [error] 4400#0: *5 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 14:01:31 [error] 4400#0: *7 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.26.179, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 14:01:33 [error] 4400#0: *5 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 14:01:34 [error] 4400#0: *10 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.26.179, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 14:01:34 [error] 4400#0: *12 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:04:28 [error] 4400#0: *4915 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:04:30 [error] 4400#0: *4917 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:04:45 [error] 4400#0: *4924 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:04:47 [error] 4400#0: *4915 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:05:00 [error] 3143#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:02 [error] 3143#0: *3 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:15 [error] 3143#0: *5 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:17 [error] 3143#0: *7 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:30 [error] 3143#0: *9 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:32 [error] 3143#0: *11 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:45 [error] 3143#0: *13 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:47 [error] 3143#0: *15 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:05:51 [error] 3143#0: *17 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:05:53 [error] 3143#0: *19 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:05:55 [error] 3143#0: *17 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:06:00 [error] 3143#0: *22 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:06:02 [error] 3143#0: *24 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:06:15 [error] 3143#0: *26 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:06:17 [error] 3143#0: *28 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:06:26 [error] 3143#0: *19 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.44.205, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "dashboard.cargoes.com"
2021/03/10 18:07:17 [error] 3143#0: *48 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET / HTTP/1.1", upstream: "http://172.17.0.2:3000/", host: "172.31.40.180"
2021/03/10 18:07:19 [error] 3143#0: *50 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjIzfSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.Ipekegy9KES866022utZbe_zRtuj254mB8tWCwst2fc HTTP/1.1", upstream: "http://172.17.0.2:3000/embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjIzfSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.Ipekegy9KES866022utZbe_zRtuj254mB8tWCwst2fc", host: "dashboard.cargoes.com", referrer: "https://app-runner.cargoes.com/"
2021/03/10 18:07:19 [error] 3143#0: *51 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI3fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.zgpyG5ndlWzvhdq3Y060e-z0BcGD2lMY4gqdOXah2TI HTTP/1.1", upstream: "http://172.17.0.2:3000/embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI3fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.zgpyG5ndlWzvhdq3Y060e-z0BcGD2lMY4gqdOXah2TI", host: "dashboard.cargoes.com", referrer: "https://app-runner.cargoes.com/"
2021/03/10 18:07:19 [error] 3143#0: *53 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.12.125, server: , request: "GET /embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI2fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.fDT-1V6g0H9LkaIJj1uzHzS4nhCG_7tYU4U53p93dDc HTTP/1.1", upstream: "http://172.17.0.2:3000/embed/dashboard/eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJyZXNvdXJjZSI6eyJkYXNoYm9hcmQiOjI2fSwicGFyYW1zIjp7ImlkIjoiNDgiLCJzdGFydGRhdGUiOiIyMDIxLTAxLTAxIiwiZW5kZGF0ZSI6IjIwMjEtMTItMTIifX0.fDT-1V6g0H9LkaIJj1uzHzS4nhCG_7tYU4U53p93dDc", host: "dashboard.cargoes.com", referrer: "https://app-runner.cargoes.com/"

Hi @Mia
There’s no log of Metabase. Try restarting. Remember to have backups.
Without logs of Metabase and version info (like “Diagnostic Info” from Admin > Troubleshooting, when the instance is working), then it’s really difficult to figure out what’s wrong.