Help needed on editing hidden content

Hello, I am trying to use the Kaws Unofficial clone found on webflow. But can not find the way to edit the drop down menus and pop up menus that are functional on the demo.

I also get stuck with this page when I try to view my changes:

I think it may be because I do not have a paid plan yet.

Here is the site link: Webflow - designer.

Here is the clone: