my query rss didn't work

anyone can help me? my rss feed doesnt work, the error is like this

An error occurred while trying to validate this feed.

Possible causes:

• The address may be incorrect. Make sure the address is spelled correctly. Try loading the feed directly in your browser to make sure a feed exists at that address.


• The feed may be temporarily unavailable. The server may be down, or too slow. Try again later.


• The validator may be busted. If the feed exists, the server is fine, and the problem is reproducible, let us know on the feedvalidator-users mailing list.

please help me, i try in here http://ift.tt/1l2GAER