Fatal error: Uncaught Error: Class "yii\web\Controller" not found in C:\xampp\htdocs\arthurkotsch.online\vendor\yiisoft\yii2-debug\src\controllers\UserController.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\arthurkotsch.online\vendor\yiisoft\yii2-debug\src\controllers\UserController.php on line 22