Fatal error: Uncaught Error: Class 'yii\bootstrap\Widget' not found in /home/trafqete/public_html/vendor/kartik-v/yii2-widget-alert/AlertBlock.php:28 Stack trace: #0 {main} thrown in /home/trafqete/public_html/vendor/kartik-v/yii2-widget-alert/AlertBlock.php on line 28