No menu on smartphone

Hi there, my site is http://www.brushpoetry.com and I am using the Make theme.

When I view the full site on my smartphone (not the mobile version which is fine) I am able to see and open the main menu on all the pages except the home page. There I can only see the menu, but when I touch it, nothing happens. When I emulate other smartphones using Chrome’s Inspect Element, it does the same thing. Any ideas?

Thank you