Fatal error: Uncaught Error: Interface "Concrete\Core\Permission\ObjectInterface" not found in /srv/disk3/2724534/www/redgraveresearch.com/concrete/src/Entity/Board/InstanceSlotRule.php:17 Stack trace: #0 {main} thrown in /srv/disk3/2724534/www/redgraveresearch.com/concrete/src/Entity/Board/InstanceSlotRule.php on line 17