Multiple issues, movies not adding, libray folder changes not saving, server not updating

If you want to try it, follow the instructions here:

However, I can’t see a good reason my moving a problematic Plex data folder to a new drive would cure the issue. But it likely wouldn’t harm anything to try it, as long as you keep your existing Plex data folder for safekeeping.

I have no idea, I’m just reporting what I see in the logs. And I wasn’t suggesting that you perform another repair; rather, I was suggesting a procedure to use if you did want to try it again.

To be perfectly honest, at this point, given the history of the server, it may be advisable to start clean. You could always rename your Plex data folder so that a new one will be automatically created.