I am currently setting up a web store, and the cart does not seem to work, it adds to the side cart but when I try to open the full cart it does not work. If I deactivate the unlimited elements plugin it will start to work again, but once re activated it stops working. Somehow unlimited elements is breaking the cart system. 

It seems to have been an issue with the menu in the header, I have stopped using the unlimited elements version of a menu and it now works