Fatal error: Uncaught Error: Class 'Symfony\Component\Debug\Exception\FatalErrorException' not found in /opt/lampp/htdocs/kuesioner/vendor/symfony/debug/Exception/FatalThrowableError.php:23 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/symfony/debug/Exception/FatalThrowableError.php on line 23