[solved] 1.7 Cart button leads to "&action=show" instead of "cart&action=show"

[krenciol]

When I click on the cart button it leads me to "&action=show" and I got 404. When I manually change to "koszyk&action=show" it works.

What may be the reason?

 

Edit:

I've reinstalled ps_shoppingcart

Edited May 25, 2020 by krenciol (see edit history)