Fatal error: Uncaught Error: Interface "Symfony\Component\DependencyInjection\ContainerInterface" not found in /home/qcsvlel/www/core/lib/Drupal/Component/DependencyInjection/ContainerInterface.php:10 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/lib/Drupal/Component/DependencyInjection/ContainerInterface.php on line 10