feeds stopped working after a while

My blog is http://thoughtdebris.websiteallies.com, and my feed is http://thoughtdebris.websiteallies.com/wp-rss2.php. Yes, it comes up as blank, and just an ad. I know this. But, when I subsrcibe to it through bloglines, it shows up, but the post is from June 21. Pleeeeeease help.