[no req] Wikimedia\Rdbms\DBQueryError from line 1457 of /srv/mediawiki/w/includes/libs/rdbms/database/Database.php: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: INSERT INTO `actor` (actor_user,actor_name) VALUES ('0','0')
Function: User::updateActorId
Error: 1062 Duplicate entry '0' for key 'actor_user' (xxx)