// Get helper instance for web forms. This will add the opening form-tag to
// the helper's render cache which is simply a small variable in the class
// BaseHelper.
-$helperInstance = ObjectFactory::createObjectByConfiguredName('html_form_helper', array($this, 'city_register'));
+$helperInstance = ObjectFactory::createObjectByConfiguredName('html_form_helper_class', array($this, 'city_register'));
// Always ask at least for nickname and password
$helperInstance->addFormGroup('login', "Bitte gebe hier gewünschten Nickname und dein Zugangspasswort ein.");