Fatal error: Uncaught Error: Class "Doctrine\Common\Collections\Expr\ExpressionVisitor" not found in /home/astechc1/public_html/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php:21 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php on line 21