Fatal error: Uncaught Error: Class 'yii\base\Widget' not found in /home/abertime/new.abertime.com.ua/vendor/mihaildev/yii2-elfinder/ButtonWidget.php:24 Stack trace: #0 {main} thrown in /home/abertime/new.abertime.com.ua/vendor/mihaildev/yii2-elfinder/ButtonWidget.php on line 24