Unable to display the cart, product with option

-- HikaShop version -- : Business 2.3.4
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.3.29
-- Browser(s) name and version -- : Firefox 34.0

If a product has an option the cart will stay on loading.
If you add a product, it will not be visible and there is no option to check out.
If I return to the main page the product is visible in the cart.

Products without an option work fine.

Hello,
Did you add some customization code through the "Cart" file of the "Product" view of your front-end template via "Hikashop->Display->Views" ?
If yes, can you remove your customization and test it again ?
Thanks.