Fatal error: Uncaught Error: Interface "JMS\Serializer\VisitorInterface" not found in /home/activeexcavators/public_html/vendor copy/jms/serializer/src/AbstractVisitor.php:14 Stack trace: #0 {main} thrown in /home/activeexcavators/public_html/vendor copy/jms/serializer/src/AbstractVisitor.php on line 14