Library is Unavailable

When viewing my media from the tabs ‘Recommended’ or ‘Collections’ I can see and play my media shown there. When I select the ‘Library’ tab, I see a ‘Synology is Unavailable’ message.

The same happens from the Web, iOS Plex app, Desktop Plex App on my Mac, and Plex on FireTV / Apple TV.

Thank you for any tips or ideas anyone may have!

Thank you so much! It was a corrupt database.