Why doesn't the shopping cart work in joomshopping in mobile safari, ie, and old operas?

Question

Joomla

Hello! There is a site:
kaminare.ru
It’s very crooked, but there’s no choice anymore (
In general, the essence of the problem is this: the basket only works on a computer in chrome and fox.
What I tried to change: the joomshopping theme, turned off the CNC, cache, put the Ajax basket, all to no purpose. It's like something with scripts, right? And where to look for the right one?