Plex unable to find any files

Server Version#:1.21.0.3616
Player Version#: n/a

Hello,
Ive had Plex running for a few months now with no massive issues, however I was having some issues so decided to just reinstall plex server on my omv nas. This worked fine and I can connect and sign in without issues, however none of my files are showing up, not one in any of my libraries. Scans change nothing. I can see subfolders in libraries but no files. Any help on this is appreciated.

Sounds like a permission issue.
Have you verified the Linux account used by your PMS (usually plex) can access the media? This can be tricky if your mounts are not properly done…