Mobile Menu not loading in white space on left hand side

Hi Guys, I have a similar issue that's been discussed but on the pro version, and the resolution was not the same for me. So here is my new entry. I have the Catch Box free version and I see my mobile menu is not loading for my site cool-banana.net If I reduce the windows size on PC or load in a mobile device, the hamburger menu appears ok. But, when that is selected the menu slides to the side as normal, but no menu is loaded. If I hover my mouse over the area there is no focus found anywhere in the black space. My logic tells me something is stopping the menu loading into the blank space provided for it. It's just an empty white space. I have checked and tested background colors using custom css, and by editing the style.css. I also enabled secondary & footer menus in mobile devices. This is nothing to do with the admin bar. This happens regardless of being login in or not, and occurs across browsers. Now I'm out of ideas now :o( You guys have any ideas? Thanks Carl