Fatal error: Uncaught Error: Class "Doctrine\ORM\Mapping\OwningSideMapping" not found in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/ToOneOwningSideMapping.php:14 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/ToOneOwningSideMapping.php on line 14