hCaptcha and wpforms compatibility bug

Hi!
I’ve recently faced an issue with hCaptcha.
I notice that if I try to go to my website’s hompage by clicking on the top left corner logo, a hCaptcha window appear. This has happen at first at my customer (logged as Admin) and then in private mode, when I tried to replicate the issue.

I contacted the wpforms’ support and this is what they told me when they tried to fix the issue:
“I’ve looked into the list of plugins, and I see that you’ve embedded the forms in the Popup Builder plugin. When I deactivated the plugin, the issue with hCaptcha was not present on the site. I suspect that the Popup Builder plugin might be causing some conflict, which is causing the hCaptcha issue when the forms are embedded.”

Can you please help me to avoid this issue?
Thank you very much

The page I need help with: [log in to see the link]