Menu Not Loading on Mobile or Tablet

Hi,

My site is almost ready for launch, but one issue I am having now is that the menu will not load when in mobile or tablet mode. Everything seems to be fine in desktop mode, but when I switch to preview in mobile or tablet mode, and I click on the Menu button, it looks like a menu will pop up on the right hand side, but then after a couple seconds, it just takes me back to the home page.

Thanks in advance for your help on this!

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