Lorenzo.liquid on "[Plugin: Visual Form Builder] Refresh page after submit"

Hello everyone,
I have a problem using Visual Form Builder.
When I submit the form, the page is going to refresh and bring me back to homepage.
Also if I submit within blank required fields inside the form, the error check bring me to another page and it doesn't work in the same page.
Any help?

https://wordpress.org/plugins/visual-form-builder/