Fatal error: Uncaught Error: Class "yii\helpers\Html" not found in C:\xampp\htdocs\arthurkotsch.online\vendor\yiisoft\yii2-bootstrap5\src\BaseHtml.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\arthurkotsch.online\vendor\yiisoft\yii2-bootstrap5\src\BaseHtml.php on line 18