my query rss didn't work

Question

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://validator.w3.org/feed

Answer 1

The domain your XML is on appears to be down, or inaccessible by the general population, which is why the validator is saying the XML feed is unavailable at http://portalkbr.com/index.xml