Ajax error Unknown AJAX Error!

[yo2you]

Hi,
I have a problem on the site trying to add product to cart receive the error Unknown error Ajax AJAX Error!
I've search the forum and I've tried all the solutions.
I use the most current version and design HTML5.
You can help?

thanks.

[Advisor]

Have you tried to use a different browser ?

[yo2you]

Yes.
Chrome, Safari and Explorer

[abantecart]

I believe this is very old issue. I am surprised you did not find it on the forum.

http://forum.abantecart.com/index.php/topic,2701.msg11530.html#msg11530