Boards not installing in mattermost after startup

Hi,

I didn’t get the Board plugin working.

I see this in the logs:

{"timestamp":"2023-11-12 21:45:48.673 +01:00","level":"info","msg":"Not installing prepackaged plugin: not previously enabled","caller":"app/plugin.go:1029","bundle_path":"/opt/mattermost/prepackaged_plugins/focalboard-v7.11.4-linux-amd64.tar.gz","plugin_id":"focalboard"}
{"timestamp":"2023-11-12 21:45:54.233 +01:00","level":"debug","msg":"Should not persist transitionally prepackaged plugin: not previously enabled","caller":"app/plugin.go:1076","plugin_id":"focalboard","prepackaged_version":"7.11.4"}

System ist Linux Debian12,
Mattermost-Version: 9.2.2
Datenbankschema-Version: 113

Any idea why it won’t install?

Regards,

Christian