Fatal error: Uncaught Error: Class 'Symfony\Component\Debug\Exception\FlattenException' not found in /home/vtsnised/public_html/anketa2.0/vendor/symfony/error-handler/Exception/FlattenException.php:27 Stack trace: #0 {main} thrown in /home/vtsnised/public_html/anketa2.0/vendor/symfony/error-handler/Exception/FlattenException.php on line 27