Password button conflict with popup

Hi,

I have a problem with the password submit button. The submit button works if I place a shortcode on a normal page but if I place a shortcode on the popup template the button isn’t working, it still submits the password if using the enter key on the keyboard but it’s not friendly for users.

How to check a popup:
1. Click on the “Download Guideline Booklet (3MB)” button
2. Try to enter some passwords and click on the “Submit” button

So, I think maybe it has a conflict with the popup or something else but I need to make it work with the popup. Could you please help check?

Thank you.

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