Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Fragment\RoutableFragmentRenderer' not found in /home/app/htdocs/message_gateway/vendor/symfony/http-kernel/Fragment/HIncludeFragmentRenderer.php:29 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/symfony/http-kernel/Fragment/HIncludeFragmentRenderer.php on line 29