Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /var/www/development/pixtask/vendor/symfony/http-kernel/EventListener/DisallowRobotsIndexingListener.php:23 Stack trace: #0 {main} thrown in /var/www/development/pixtask/vendor/symfony/http-kernel/EventListener/DisallowRobotsIndexingListener.php on line 23