Fatal error: Uncaught Error: Class 'yii\base\Component' not found in /mnt/www/fss/service-center/vendor/yiisoft/yii2-debug/src/Panel.php:27 Stack trace: #0 {main} thrown in /mnt/www/fss/service-center/vendor/yiisoft/yii2-debug/src/Panel.php on line 27