Fatal error: Uncaught Error: Class "Doctrine\ORM\Persisters\Entity\AbstractEntityInheritancePersister" not found in /home/ldt/public_html/canvas/udoit/vendor/doctrine/orm/src/Persisters/Entity/JoinedSubclassPersister.php:28 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/doctrine/orm/src/Persisters/Entity/JoinedSubclassPersister.php on line 28