Issue with postgres in initial setup

nano /var/metabase/metabase.env

Password complexity for Metabase user, allowed values <weak|normal|strong>

MB_PASSWORD_COMPLEXITY=normal

Password length for Metabase user

MB_PASSWORD_LENGTH=8

Host and Port on which the inbuilt jetty server listens,

Leave it unchanged

MB_JETTY_HOST=localhost
MB_JETTY_PORT=3000

Provide Intranet or Private IP address of PostgresSQL server

MB_DB_TYPE=postgres
MB_DB_HOST=here is localhost or lan ip or 127.0.0.1?
MB_DB_PORT=3433

Provide the database name

MB_DB_DBNAME=metabasedb

Provide the username of database user

MB_DB_USER=metabase

Provide the password of database user

MB_DB_PASS=mypassword

Setting it true will include emojis in logs, to disable set it to false

MB_EMOJI_IN_LOGS=true

I cant start

this is log

Nov 16 11:38:01 hontzaubuntu16 systemd[1]: metabase.service: Main process exited, code=exited, status=1/FAILURE
Nov 16 11:38:01 hontzaubuntu16 systemd[1]: metabase.service: Unit entered failed state.
Nov 16 11:38:01 hontzaubuntu16 systemd[1]: metabase.service: Failed with result 'exit-code'.
Nov 16 11:38:01 hontzaubuntu16 systemd[1]: metabase.service: Service hold-off time over, scheduling restart.
Nov 16 11:38:01 hontzaubuntu16 systemd[1]: Stopped Metabase server.
Nov 16 11:38:01 hontzaubuntu16 systemd[1]: Started Metabase server.