Fatal error: Uncaught Error: Class 'Symfony\Component\Form\AbstractExtension' not found in /home/itscm/dev.its.cm/itsgateway/vendor/symfony/form/Extension/Templating/TemplatingExtension.php:29 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/itsgateway/vendor/symfony/form/Extension/Templating/TemplatingExtension.php on line 29