Under Debian with a quick install of jitsi-meet, you might run into the problem that the videobridge (jvb) is not starting. Checking
journalctl -xe shows
jitsi-videobridge2.service: Failed to load environment files: No such file or directory.
On JVB-side an error should be logged in
/var/log/jitsi/jvb.log, stating the error message “No such file or directory” and the full qualified path, that could not be accessed.
No error is logged in jvb.log. Therefore an admin has no idea what file/directory is not accessible.