Error trying to open library

Hello,
I am trying to open a library I have been working on during the days and I just can't.
I get the following message:
The operation couldn’t be completed. (NSSQLiteErrorDomain error 11.)

Pictures attached attached.

Is there a way to fix this?
Thanks
j

Where is the library stored?

Hello,
Library in on and external ssd (usb 3)

It should be APFS formatted. I can't be ExFAT. Check read/write permissions for the whole drive as well, in case something changed.

Tom Wolsky wrote:

It should be APFS formatted. I can't be ExFAT. Check read/write permissions for the whole drive as well, in case something changed.

Well, it worked this morning in the very same drive.
Apart for the permissions is there anything else I can try to recover this library?

Imagine this fellow having to open a massive 100TB library and having a similar issue and not having a solution.

fcp.co/forum/4-final-cut-pro-x-fcpx/3642...rary-any-suggestions

Library possibly corrupted. Select the library, choose File > Open Library > From Backup. Or try trashing preferences and restarting FCP.

Btw, USB 3 is slow. Avoid it if you can. Go with TB 3 or 10GbE.