Feed cannot be found or parsed

I recently updated my sites to 3.0 and along with it all of the plugins including the recent global posts feed. Now non of my rss feeds for both the comment and posts feed are working. The indexers are working properly because the your widgets that I have installed are working. I have tryed deleting the php file from wp-content and reinstalling but this didn't help. Please let me know what I'm doing wrong. The site is Polititalk.org