Would suggest you to load the most recent backup and check if that is working fine for you.
If not, you might want to create a new empty catalog > go to File > Import from another catalog > choose the main catalog to be imported from and let us know if that works.
hey I tried everything and even screen share with a member of your staff and no progress. She told me it might be corrupted and they might try to repair it. Is that possible? looking forward to a response. Thank you!
You did try importing to a new catalog??
Yes Adobe staff can TRY and recover/repair the catalog but nothing is guaranteed.
You do have a recent back up??
Yes, we can try to repair the catalog if you share your catalog.