Fatal error: Uncaught Error: Class "yii\base\Behavior" not found in /var/www/binary/vendor/kartik-v/yii2-date-range/src/DateRangeBehavior.php:21 Stack trace: #0 {main} thrown in /var/www/binary/vendor/kartik-v/yii2-date-range/src/DateRangeBehavior.php on line 21