You might get this error because you're using a "preview" version of your site now. I saw this message on your site.
This is a preview of your new Web site. Once you've completed setting up this site's content, you need to modify the DNS settings of your domain for it to be live to the public.
Click here to learn more about setting your domain's nameservers.
If you still encounter trouble with your 'live' site, try to disable all other plugins and reactivate Jetpack. This way we can see if other plugins interfere with Jetpack.
Also make sure you are running the latest WordPress and Jetpack version:
http://www.wordpress.org
http://www.jetpack.me
Looking forward to your reply.