Error "Cache Entry not found" - can't open one database

I have one database on my server than cannot be opened. The error message is “Cache Entry not found”. It happens on multiple desktops (8.5.1, 8.0.1) so I don’t think it’s local.

I have tried:

delete cache.ndk

fixup (no errors)

compact (no errors)

Anyone have an idea what’s wrong??