Fatal error: Uncaught Error: Class "Doctrine\ORM\Query\SqlWalker" not found in /home/astechc1/public_html/vendor/beberlei/doctrineextensions/src/Query/SortableNullsWalker.php:29 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/beberlei/doctrineextensions/src/Query/SortableNullsWalker.php on line 29