Hi,
we have a modified version 3.x.ultimate
and problem with installation of addon http://marketplace.cs-cart.com/add-ons/customer-experience/buy-in-1-click.html
In testing version it look like: http://i.imgur.com/x38aYRn.png
and when I try to buy product - I can`t http://i.imgur.com/IHToagH.png
Help, please!