Captcha doesn`t work

I use aiContactSafe for my contact site.

www.abc-dienste.org

But on my mobile phone captcha doesn´t appear. I deleted contact on menu for mobile.
If I open my site on mobile and than choose "standard version" it works.

Is there any way to make it work an mobile?
CAPTCHA is using AJAX to load.

You might want to check our Confident Technologies CATPCHA product....I use it....

www.confidenttechnologies.com/products/confident-captcha

It should solve your issues and is extremely easy to use...

Eddie