Help! I just upgraded Civi from 4.7.3 to 4.7.7, but my host timed out during the DB upgrade and it was unable to complete. So I restored a backup of the database and was going to try again, but now every time I do anything with Civi, it gives me a DB Error: constraint violation.
I can't access any of Civi's backend now; it all gives me the same error. And when I try to run the upgrade script, it gives me the error after I click upgrade.
Is there anything I can do? Is my entire Database and my backup worthless now??