Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /home/net1/social.net1.club/vendor/symfony/security-bundle/DependencyInjection/SecurityExtension.php:43 Stack trace: #0 {main} thrown in /home/net1/social.net1.club/vendor/symfony/security-bundle/DependencyInjection/SecurityExtension.php on line 43