Fatal error: Uncaught Error: Class "yii\web\AssetBundle" not found in /var/www/html/v2/server/vendor/yiisoft/yii2-debug/src/UserswitchAsset.php:18 Stack trace: #0 {main} thrown in /var/www/html/v2/server/vendor/yiisoft/yii2-debug/src/UserswitchAsset.php on line 18