Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Http\Firewall\ChannelListener' not found in /home/eberhardschwarze/public_html/var/cache/prod/ContainerRjol8xm/getSecurity_ChannelListenerService.php:8 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/var/cache/prod/ContainerRjol8xm/getSecurity_ChannelListenerService.php on line 8