Alway display message "The cart is empty"

-- url of the page with the problem -- : www.yikouzu.com
-- HikaShop version -- : 4.0.3
-- Joomla version -- : 3.9.4
-- PHP version -- : 7.2.8

I uninstalled and reinstalled.But still couldn't solved.
When I click product:
"Message:Resource not found,
Please login first"

I find it occured when I set Hikashop menu as homepage menu.
Now I solved it .I closed "Search Engine Friendly URLs" in Joomla global Site Settings