Kibana does not restart without information about the error

[ismaelalt (Ismaël)]

My team has a deployment on Elastic Cloud involving several instances of the stack (Elasticsearch, Integrations server, Kibana...).

For a few weeks now our Kibana instance has been down. Using "Force restart" fails and I did not find any information or log about the failure.

This is an important issue for us because without the Kibana instance we cannot monitor, edit or observe our App Search engines, and it prevents us from editing our deployment.

Here is the log corresponding to the restart of Kibana:

Could you please provide guidance about what we could do to fix this?

[ismaelalt (Ismaël)]

I re-applied the Elastic version upgrade to the Kibana instance and it successfully restarted.