Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Definition\ConfigurationInterface" not found in /usr/www/lv2az/public/notbomb/youtopia/phpbb/di/extension/container_configuration.php:19 Stack trace: #0 {main} thrown in /usr/www/lv2az/public/notbomb/youtopia/phpbb/di/extension/container_configuration.php on line 19