Fatal error: Uncaught Error: Interface "Doctrine\Common\Collections\Collection" not found in /home/zdpktgd/ptc/vendor.old/doctrine/collections/src/AbstractLazyCollection.php:19 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/collections/src/AbstractLazyCollection.php on line 19