Impossible to access checkout

-- HikaShop version -- : 2.5.0
-- Joomla version -- : 3.4.3

Hi,
I've install Hika in a existed template, you can check at www.apicework.it/pellet (add at your host: i 46.30.242.93).

When I try to add a product the system return to home page and product doesn't add at cart.

Why?

Thanks and good Job
Matteo Fontana

Hello,
Can you try it with the "Use AJAX when possible for add to cart buttons" option set to YES via "Hikashop->System->Configuration->Main"?