Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Loader\LoaderInterface" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/symfony/routing/Loader/AnnotationClassLoader.php:73 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/symfony/routing/Loader/AnnotationClassLoader.php on line 73