Slack subscription not sending

Getting this error when subscription tries to send a message to slack

{
  "browser-info": {
    "language": "en-US",
    "platform": "MacIntel",
    "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36",
    "vendor": "Google Inc."
  },
  "system-info": {
    "file.encoding": "UTF-8",
    "java.runtime.name": "OpenJDK Runtime Environment",
    "java.runtime.version": "11.0.18+10",
    "java.vendor": "Eclipse Adoptium",
    "java.vendor.url": "https://adoptium.net/",
    "java.version": "11.0.18",
    "java.vm.name": "OpenJDK 64-Bit Server VM",
    "java.vm.version": "11.0.18+10",
    "os.name": "Linux",
    "os.version": "5.4.0-1039-aws",
    "user.language": "en",
    "user.timezone": "GMT"
  },
  "metabase-info": {
    "databases": [
      "postgres",
      "bigquery-cloud-sdk"
    ],
    "hosting-env": "unknown",
    "application-database": "postgres",
    "application-database-details": {
      "database": {
        "name": "PostgreSQL",
        "version": "13.7"
      },
      "jdbc-driver": {
        "name": "PostgreSQL JDBC Driver",
        "version": "42.5.1"
      }
    },
    "run-mode": "prod",
    "version": {
      "date": "2023-04-05",
      "tag": "v1.46.1",
      "branch": "release-x.46.x",
      "hash": "12a6e1d"
    },
    "settings": {
      "report-timezone": null
    }
  }
}

ERROR metabase.pulse.render.png Error rendering Pulse
java.lang.NullPointerException
	at clojure.core$name.invokeStatic(core.clj:1610)
	at clojure.core$name.invoke(core.clj:1604)
	at clojure.core$comp$fn__5876.invoke(core.clj:2586)
	at clojure.core$update_keys$fn__8946.invoke(core.clj:8034)
	at clojure.lang.PersistentArrayMap.kvreduce(PersistentArrayMap.java:429)
	at clojure.core$fn__8525.invokeStatic(core.clj:6908)
	at clojure.core$fn__8525.invoke(core.clj:6888)
	at clojure.core.protocols$fn__8257$G__8252__8266.invoke(protocols.clj:175)
	at clojure.core$reduce_kv.invokeStatic(core.clj:6919)
	at clojure.core$update_keys.invokeStatic(core.clj:8024)
	at clojure.core$update_keys.invoke(core.clj:8024)
	at metabase.pulse.render.datetime$format_temporal_str.invokeStatic(datetime.clj:85)
	at metabase.pulse.render.datetime$format_temporal_str.invoke(datetime.clj:66)
	at metabase.pulse.render.body$fn__72950$get_format__72955$fn__72956$fn__72957.invoke(body.clj:90)
	at metabase.pulse.render.body$fn__73033$query_results__GT_row_seq__73038$fn__73042$iter__73046__73050$fn__73051$iter__73085__73089$fn__73090.invoke(body.clj:166)
	at clojure.lang.LazySeq.sval(LazySeq.java:42)
	at clojure.lang.LazySeq.seq(LazySeq.java:51)
	at clojure.lang.RT.seq(RT.java:535)
	at clojure.core$seq__5467.invokeStatic(core.clj:139)
	at clojure.core$map_indexed$mapi__8638$fn__8639.invoke(core.clj:7369)
	at clojure.lang.LazySeq.sval(LazySeq.java:42)
	at clojure.lang.LazySeq.seq(LazySeq.java:51)
	at clojure.lang.RT.seq(RT.java:535)
	at clojure.core$seq__5467.invokeStatic(core.clj:139)
	at clojure.core$seq__5467.invoke(core.clj:139)
	at metabase.pulse.render.table$render_table_body$iter__72828__72832$fn__72833$iter__72867__72871$fn__72872.invoke(table.clj:122)
	at clojure.lang.LazySeq.sval(LazySeq.java:42)

Any more error loges before or after that? ... Does the dashboard you are trying to send loads correctly on metabase? Is the recipient an Admin?