Fatal error: Uncaught Error: Class 'yii\debug\Panel' not found in /home/mvihurz/v4/vendor/yiisoft/yii2-debug/src/panels/DbPanel.php:29 Stack trace: #0 {main} thrown in /home/mvihurz/v4/vendor/yiisoft/yii2-debug/src/panels/DbPanel.php on line 29