Fatal error: Uncaught Error: Class "Doctrine\Persistence\Mapping\MappingException" not found in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/MappingException.php:27 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/orm/src/Mapping/MappingException.php on line 27