For future reference…
If Plex Media Server is running: Reporting issues with Plex Media Server
If Plex Media Server will not run: FAQ 1: Gaining access to the Plex logs or when PMS isn’t running / won’t start
Impossible to tell without log files. However, it reads like database corruption, which, if bad enough, can stop Plex Media Server from running.
It is relatively easy to determine if there is database corruption. Look in Plex Media Server.log (and rollovers .1.log to .5.log) for ERROR entries that mention the database is corrupt or malformed.
To repair database corruption, use the Plex DBRepair Utility. It is easier and more thorough than the manual steps in the Plex support article: Repair a Corrupt Database.
