Fatal error: Uncaught Error: Class "Drupal\Core\Controller\ControllerBase" not found in /home/qcsvlel/www/core/modules/config_translation/src/Controller/ConfigTranslationController.php:27 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/config_translation/src/Controller/ConfigTranslationController.php on line 27