Fatal error: Uncaught Error: Class 'yii\bootstrap\BaseHtml' not found in /home/ckavlab/public_html/basic/vendor/yiisoft/yii2-bootstrap/src/Html.php:20 Stack trace: #0 {main} thrown in /home/ckavlab/public_html/basic/vendor/yiisoft/yii2-bootstrap/src/Html.php on line 20