Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher" not found in /users/energydata/www/volkszaehler.org/vendor/symfony/http-kernel/Debug/TraceableEventDispatcher.php:24 Stack trace: #0 {main} thrown in /users/energydata/www/volkszaehler.org/vendor/symfony/http-kernel/Debug/TraceableEventDispatcher.php on line 24