Home Videos Metadata lost

I messed up today when Editing a library which had “other videos” selected as library type.
I use this library to save Live concerts since most of them don’t have metadata in any of the agents I’ve seen. So I fill the metadata manually for every item.
Problem is, a lot of them come with a file named “menu” which takes space in the library.
Tried to get rid of it using a plexignore Menu but then it ignored a lot of items that didn’t have it on its filename.
When I got rid of the plexignore to recover the lost files, I found out I had lost metadata for all these items.

Is there a way to recover it?

You can try to restore a backup of the database file.
https://support.plex.tv/articles/202485658-restore-a-database-backed-up-via-scheduled-tasks/