Fatal error: Uncaught Error: Interface "Concrete\Core\Board\Instance\Slot\Content\Filterer\FiltererInterface" not found in /home/elcrestweb/public_html/concrete/src/Board/Instance/Slot/Content/Filterer/SummaryObjectFilterer.php:6 Stack trace: #0 {main} thrown in /home/elcrestweb/public_html/concrete/src/Board/Instance/Slot/Content/Filterer/SummaryObjectFilterer.php on line 6