After as you clicked to “checkout” button from “shopping cart” page, you can’t return back to “shopping cart” page, clicking to icon of “shoppiong cart”, that in top right coner , after clicking we have some bug whereby NOTHING works, and only refresh button in browser can fix it.

As result after clicking to “checkout” page, buyer has no possibility to go back to shopping cart to edit something, if necessary
Its CRITICAL error – please fix it asap.