Can’t import rss in Invision Power Board after upgrade to wordpress 2.7

[MadBox]

Invision can’t validate the rss feed.

if i try to update

RSS Import(s) Re-cached
Could not open https://www.madboxpc.com/category/noticias/rss to locate channels.

if i try to validate on ipb

Validation Results for https://www.madboxpc.com/feed
· HTTP Status Code: 301 (Moved Permanently)
· We could not determine the feed’s character set
· We could not find any channels in the RSS feed (nothing to import).

[MarkRH]

Trying using these URLs instead:

https://www.madboxpc.com/category/noticias/feed/rss/

and

https://www.madboxpc.com/feed/

Removing the trailing “/” at the end will cause a 301 redirection error like it says and will cause some PHP RSS readers to fail.