Fatal error: Uncaught Error: Class 'Doctrine\Common\Collections\AbstractLazyCollection' not found in /home/thomaeo/www/vendor/doctrine/orm/lib/Doctrine/ORM/LazyCriteriaCollection.php:19 Stack trace: #0 {main} thrown in /home/thomaeo/www/vendor/doctrine/orm/lib/Doctrine/ORM/LazyCriteriaCollection.php on line 19