Submitting a podcast - technical difficulties

I just tried submitting a new podcast, but I keep getting a technical difficulties message.

Searching this board, I see this problem occurred in April and again earlier in June. Is this one ongoing problem, or is it intermittent, where it might allow me to submit in a day or so?

As far as I know, my feed is fine. I can add it through the Advanced menu in itunes. But I'd like to get it added to iTunes itself so people can search/find it easier.

http://feeds.feedburner.com/teachchip

Any ideas?

-Chip