Fatal error: Uncaught Error: Class 'yii\base\Behavior' not found in /home/abertime/new.abertime.com.ua/vendor/carono/yii2-file-upload/src/behaviors/PivotFileSaveBehavior.php:18 Stack trace: #0 {main} thrown in /home/abertime/new.abertime.com.ua/vendor/carono/yii2-file-upload/src/behaviors/PivotFileSaveBehavior.php on line 18