Suddenly it shows me shipping per product [SOLVED]

-- url of the page with the problem -- : www.tiendamat.com
-- HikaShop version -- : 2.6.3
-- Joomla version -- : 3.5.1
-- PHP version -- : 5.6

Hello,

Suddenly, out of the blue, Hikashop is showing me a shipping option for each product I'm buying. It doesn't matter if it's through a registered user or a guest one. I don't know why is that happening.

Best regards

SOLVED: I don't know why, a couple of new products had a warehouse attached. Changed that and it's solved.