Episodes have disappeared from iTunes

[Mike Duncan]

I had a problem with my hosting site (Libsyn) that temporarily broke all the download links for my show. Libsyn fixed the problem, but iTunes (etc) continues to show no available episodes. If this is a problem with the feedburner side, I need someone to check my account and make sure nothing is broken. When I tried to ping it I got this error message: "Your Ping resulted in an Error "We were unable to process your ping. You must ping with a URL that exactly matches the channel link (RSS) or alternate link (Atom) in your top level feed element pointing back to your website (e.g http://myblog.blogspot.com/), or use your feed URL (e.g. http://feeds.feedburner.com/myuri)." Which is crazy because it's the same address I've been using for seven years and has not been altered. I re-synced the feed, but it's still not populating over to iTunes. Help!!!