Fatal error: Uncaught Error: Interface "Symfony\Contracts\Service\ServiceSubscriberInterface" not found in /var/www/html/demo.ininli.ca/releases/16/vendor/symfony/framework-bundle/Controller/AbstractController.php:57 Stack trace: #0 {main} thrown in /var/www/html/demo.ininli.ca/releases/16/vendor/symfony/framework-bundle/Controller/AbstractController.php on line 57