Fatal error: Uncaught Error: Class 'Doctrine\ORM\Query\TreeWalkerAdapter' not found in /home/cgenial/sandbox.cgenial.org/vendor/doctrine/orm/lib/Doctrine/ORM/Tools/Pagination/CountWalker.php:37 Stack trace: #0 {main} thrown in /home/cgenial/sandbox.cgenial.org/vendor/doctrine/orm/lib/Doctrine/ORM/Tools/Pagination/CountWalker.php on line 37