Fatal error: Uncaught Error: Class 'kartik\base\Widget' not found in /home/wittyly/public_html/live/hr-witty/vendor/kartik-v/yii2-widget-alert/src/Alert.php:22 Stack trace: #0 {main} thrown in /home/wittyly/public_html/live/hr-witty/vendor/kartik-v/yii2-widget-alert/src/Alert.php on line 22