Customer cannot complete the transaction or contin

-- HikaShop version -- : 26.0.0
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.4.43
-- Browser(s) name and version -- : Firefox 42.0
-- Error-message(debug-mod must be tuned on) -- : Not getting an error message

Customer adds items to the cart and presses the Finish button, nothing happens. The customer sees a small red circle with a line thru it. The order is not accepted. We have not changed anything in the backend. We updated the our Hikashop Business version 26.0.0 several days ago and the problem began.
Also if you press the Continue Shopping button, you get a 404 Error - Article Not Found.

Found something similar on another post and the resolution was to download Hikashop 26.0 again and reinstall it. It did that and now everything is working. Reading the other post, there is an apparent fix in the latest download.

Problem is resolved.