Fatal error: Uncaught Error: Class "yii\base\Widget" not found in /home/apolo/public_html/sgdpr/vendor/2-yiisoft/yii2-debug/src/widgets/NavigationButton.php:18 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/2-yiisoft/yii2-debug/src/widgets/NavigationButton.php on line 18