Fatal error: Uncaught Error: Class "yii\helpers\Html" not found in /var/www/firstlan.uchetprosto.ru/vendor/yiisoft/yii2-bootstrap5/src/BaseHtml.php:18 Stack trace: #0 {main} thrown in /var/www/firstlan.uchetprosto.ru/vendor/yiisoft/yii2-bootstrap5/src/BaseHtml.php on line 18