PloneFormGen crash after submit

Plone Support Add-on Development
,
1

Hi, I did everything as here https://docs.plone.org/working-with-content/managing-content/ploneformgen/embedding.html

    from Products.CMFCore.utils import getToolByName
def render_form(self):
    portal = getToolByName(self.context, 'portal_url').getPortalObject()
    form_view = portal.restrictedTraverse('path/to/form/@@embedded')
    form_view.prefix = 'mypfg'
    return form_view()

and in page template

<tal:block tal:replace="structure view/render_form"/>

but after click submit I receive

    Module script, line 37, in fgvalidate_base
   - <FSControllerValidator at /netizen/contact-form/fgvalidate_base>
   - Line 37
  Module Products.PloneFormGen.content.form, line 689, in fgGetSuccessAction
Retry: Retry

 - Expression: "view/render_form"
 - Filename:   ... c/ploneconf/theme/browser/templates/pages/contactpage.pt
 - Location:   (line 19: col 44)
 - Source:     ... k tal:replace="structure view/render_form"/>
                                            ^^^^^^^^^^^^^^^^
 - Arguments:  repeat: {...} (0)
               template: <ViewPageTemplateFile - at 0x7f29acbb4550>
               views: <ViewMapper - at 0x7f29ac7504d0>
               modules: <instance - at 0x7f29b65cd560>
               args: <tuple - at 0x7f29be5b9050>
               here: <ImplicitAcquisitionWrapper contact at 0x7f29aca47690>

please help :slight_smile: