Captcha error persist

Hello, I installed the captcha code on this page because I had too much spamming getting in: http://goo.gl/47Mvjp

I did follow all the instrauction in fact hre eis the settings: http://awesomescreenshot.com/0353jgwl0e

But when you try to fill in the form, you get the error code.

How can I solve the problem?

Thanks

Hi Dave,

You have v5 on that page now ?

Regards,
Max