Fatal error: Uncaught Error: Class 'kartik\base\InputWidget' not found in /var/www/up.tantal-metall.com/yii_up/vendor/kartik-v/yii2-widget-fileinput/src/FileInput.php:34 Stack trace: #0 {main} thrown in /var/www/up.tantal-metall.com/yii_up/vendor/kartik-v/yii2-widget-fileinput/src/FileInput.php on line 34