Cant comment in k2 article

Hi

i cant comment in my k2 article. I've set it to enable to everyone in settings and auto publishing to yes.
Cant figure it out
the site is http://tinyurl.com/bw3cedg
thanks

I've just added comment here: http://www.intotheweb.pt/sites-em-joomla.html and I've received a message that it is awaiting a moderation.

Hi
Thanks. I forgot to post a reply here! I figured out that i had the recapchta on, but with no recaptcha key inserted.

Thanks anyway