Pop-up box doesn't scroll properly on Mobile


I am trying to create a pop-up on a page. It looks great on Desktop. But when it goes to mobile view, it doesn’t scroll properly. I have a CTA button at the bottom and it’s very hard to click on mobile.

Is there a way to fix this?

In the preview, you need to scroll down to room types and click the second one “King Bed Suite”.

Thank you very much!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)