Fatal error: Uncaught Error: Class 'Doctrine\ORM\Id\AbstractIdGenerator' not found in /home/optinadmin/rfl.optin.co.nz/concrete/vendor/doctrine/orm/lib/Doctrine/ORM/Id/AssignedGenerator.php:34 Stack trace: #0 {main} thrown in /home/optinadmin/rfl.optin.co.nz/concrete/vendor/doctrine/orm/lib/Doctrine/ORM/Id/AssignedGenerator.php on line 34