Fatal error: Uncaught Error: Interface "OCP\Migration\IRepairStep" not found in /users/ms-it/www/oc/lib/private/Repair/OldGroupMembershipShares.php:31 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/private/Repair/OldGroupMembershipShares.php on line 31