Fatal error: Uncaught Error: Class "Doctrine\Common\Collections\Expr\ExpressionVisitor" not found in /home/ldt/public_html/canvas/udoit/vendor/doctrine/orm/src/Query/QueryExpressionVisitor.php:22 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/doctrine/orm/src/Query/QueryExpressionVisitor.php on line 22