Fatal error: Uncaught Error: Class "kartik\base\AssetBundle" not found in /home/apolo/public_html/sgdpr/vendor/kartik-v/yii2-widget-spinner/SpinnerAsset.php:20 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/kartik-v/yii2-widget-spinner/SpinnerAsset.php on line 20