Any logs ?
Sometimes database corruptions only have a big impact after upgrades because of database schema updates
I am changing the tag on your topic from server-linux to server-drobo
See these support articles for log files - drobo is not listed - let me know if you are unable to locate the server log files
Please zip and attach
https://support.plex.tv/articles/200250417-plex-media-server-log-files/
https://support.plex.tv/articles/202915258-where-is-the-plex-media-server-data-directory-located/
