Fatal error: Uncaught Error: Class "Symfony\Component\Form\Exception\LogicException" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Exception/AlreadySubmittedException.php:20 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Exception/AlreadySubmittedException.php on line 20