Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Builder\ConfigBuilderInterface" not found in /home/Xereah/public_html/pstruzik/var/cache/dev/Symfony/Config/SecurityConfig.php:17 Stack trace: #0 {main} thrown in /home/Xereah/public_html/pstruzik/var/cache/dev/Symfony/Config/SecurityConfig.php on line 17