Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/web-link/EventListener/AddLinkHeaderListener.php:30 Stack trace: #0 {main} thrown in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/web-link/EventListener/AddLinkHeaderListener.php on line 30