Fatal error: Uncaught Error: Class 'Yii2Rbac\base\Controller' not found in /mnt/www/fwrsxt/vendor/dream/yii2rbac/controllers/UserRoleController.php:17 Stack trace: #0 {main} thrown in /mnt/www/fwrsxt/vendor/dream/yii2rbac/controllers/UserRoleController.php on line 17