"Recently Added in Music" database got corrupted

Ugh, my oldest backup seems not to have this corruption. Music shows up with correct adding date.
BUT, switching to movies results in
Something went wrong
An unexpected error occurred.

And then the connection to the NAS is lost …

To make it more complicated, I just received a Plex email
Action required: Important notice of a potential data breach

Loads of people are having issues at the moment!