Fatal error: Uncaught Error: Class 'yii\bootstrap\Widget' not found in /home/trafqete/public_html/vendor/yiisoft/yii2-bootstrap/src/Collapse.php:54 Stack trace: #0 {main} thrown in /home/trafqete/public_html/vendor/yiisoft/yii2-bootstrap/src/Collapse.php on line 54