Fatal error: Uncaught Error: Class "Doctrine\ORM\Mapping\ToOneOwningSideMapping" not found in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/ManyToOneAssociationMapping.php:10 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/ManyToOneAssociationMapping.php on line 10