Fatal error: Uncaught Error: Class 'yii\base\Widget' not found in /var/www/uchetprosto.usa-ak.com/up/vendor/yiisoft/yii2-bootstrap5/src/Widget.php:15 Stack trace: #0 {main} thrown in /var/www/uchetprosto.usa-ak.com/up/vendor/yiisoft/yii2-bootstrap5/src/Widget.php on line 15