Fatal error: Uncaught Error: Class "Symfony\Component\Form\AbstractExtension" not found in /home/net1/social.net1.club/vendor/symfony/form/Extension/Validator/ValidatorExtension.php:25 Stack trace: #0 {main} thrown in /home/net1/social.net1.club/vendor/symfony/form/Extension/Validator/ValidatorExtension.php on line 25