Fatal error: Uncaught Error: Class 'yii\web\Controller' not found in /var/www/html/autocar/vendor/kartik-v/yii2-tree-manager/src/controllers/NodeController.php:34 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/kartik-v/yii2-tree-manager/src/controllers/NodeController.php on line 34