Coupon not applying

-- url of the page with the problem -- : bestedernewsletters.com
-- HikaShop version -- : 2.6.0
-- Joomla version -- : 3.4.5

I've created a coupon for 50% off

When I go to the store, select my product and enter the code...the discount is applied.

When I continue and checkout (as a guest or as a registered user)...the discount DISAPPEARS and is no longer applied.

Screenshots:

I figured it out.

Today, I downloaded an update dated for today that fixed the problem.

Thanks