Product not found

-- HikaShop version -- : 1504301217
-- Joomla version -- : 3.4.1
-- Browser(s) name and version -- : chrome
-- Error-message(debug-mod must be tuned on) -- : " Message - Product not found"

When clicking on some products, I get the following message:

" Message - Product not found"

ark.developwithrgb.com/natural-dog-products

The product does exist.

Please advise

Hello,
Can you test it without any SEF option and module ? so that we can now if it's coming from it ?
Thanks.

I resolved it. I had exclamation marks on the alias field