I am also facing the same problem. Checked console on FireFox and error is this one:
ReferenceError: onTouchStart is not defined el.addEventListener('touchstart', onTouchStart, false);
jquery....ider.js (linha 398, col 12)
So... I don't know what to do! :(
EDIT:
I had this issue solved by downloading this:
Hope this helps future visitors too!