Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Event\KernelEvent' not found in /var/www/html/btest1.ledaco.net/public_html/external/vendor/symfony/http-kernel/Event/RequestEvent.php:25 Stack trace: #0 {main} thrown in /var/www/html/btest1.ledaco.net/public_html/external/vendor/symfony/http-kernel/Event/RequestEvent.php on line 25