Fatal error: Uncaught Error: Interface "Haste\Form\Validator\ValidatorInterface" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/codefog/contao-haste/library/Haste/Form/Validator/MandatoryOn.php:8 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/codefog/contao-haste/library/Haste/Form/Validator/MandatoryOn.php on line 8