Fatal error: Uncaught Error: Interface "Symfony\Component\ErrorHandler\ErrorEnhancer\ErrorEnhancerInterface" not found in /var/www/html/festival/vendor/symfony/error-handler/ErrorEnhancer/UndefinedMethodErrorEnhancer.php:20 Stack trace: #0 {main} thrown in /var/www/html/festival/vendor/symfony/error-handler/ErrorEnhancer/UndefinedMethodErrorEnhancer.php on line 20