Fatal error: Uncaught Error: Interface 'Concrete\Core\Board\Instance\Slot\Content\ObjectInterface' not found in /home/gmcguire/public_html/concrete5/concrete/src/Board/Instance/Slot/Content/SummaryObject.php:15 Stack trace: #0 {main} thrown in /home/gmcguire/public_html/concrete5/concrete/src/Board/Instance/Slot/Content/SummaryObject.php on line 15