Comments Captcha Not Working?

Hi, this is really weird 'cause my comments captcha is not showing anymore...

Can you browse my site and tell me if it's working or not?

Here's my site: http://www.mkamal.co.id/

If it's not showing, what is the problem?
And if it's showed then what's wrong with my settings? 'Cause here it won't show up ...

I've checked the 'Plug In' and the ReCaptcha plug in seems in order.

Thank you for your support..

Hi

I believe You are refering to K2 comments recaptcha. It has to be configured and enabled in global settings for K2. It's also requiring a plugin for that enabled and configured.