two forms in one page in the second the required field check doesn't work

Hi,
at this page http://www.renova-srl.it/it/component/com_chronoforms5/Itemid,679/view,form/ login how demo / demo
we have inesert a calculation form, that after submit, reload the same form more a contact form.
In the contact form all field are required, but the check doesn't work and we can submit an email with empty fields.
How we can resolve this issue?
Regads
Donato

Hi Donato,
Does the contact form work fine when its alone on the page ?
How do you load the contact form after the first one is submitted ?
Please try to use v6 for the contact form ?
Best regards

Hi Max,
Yes, if its alone the form work fine.
Here below how is build the form system. How you can see in onresult step, I call two form with HTML Render Form.
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There is a way to resolve this issue witouth migrate all forms to v6?
Regards
Emanuele

Initially there is only the first calculation form:
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After submit, appear the first calculation form, for to do another counting, and the second form if the user want to request a quote.

Hi donato,
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You are displaying 2 pages of the same form in one web page, I'm not sure if this will work, please try to convert the 2nd page to a new form and display it using the plugin, there is an action to display Joomla plugins, or using a module.
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Best regards