[epic]

Hopefully I'm asking this in the right forum.. My problem is that when anyone enters the cart on my site, everything in the left and right panels disappears! The backgrounds for the panels are still there, they're just empty, which throws you a bit and gives the impression that there's an error.

I would imagine that it's just a case of calling a file from somewhere, but to save me days of looking, does anyone know how to fix this... Thank you!