Fatal error: Uncaught Error: Class "Doctrine\ORM\Query\Expr\Base" not found in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Query\Expr\GroupBy.php:12 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Query\Expr\GroupBy.php on line 12