RSS feed broken

Hi

I have two domains on the same wordpress install: http://roxanajones.com and http://tapuat.com

The feed http://tapuat.com/feed/ is totally broken while the feed http://roxanajones.com is working perfectly ?!?!?!

I tried to update the theme but besides breaking totally my layout it did not solve anything. So i rolled over the version i had earlier.

Now I wonder where this could come from as because of the fact that http://roxanajones.com has its feeds working well i do not understand that http://tapuat.com is broken.

Any hint ?

PS: I disabled all plugins and it did not change a thing either