Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Exception\HttpException' not found in /home/eberhardschwarze/public_html/vendor/lexik/maintenance-bundle/Exception/ServiceUnavailableException.php:13 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/lexik/maintenance-bundle/Exception/ServiceUnavailableException.php on line 13