Originally Posted by joshuamu
Can i just re-install the files which contain the rss feed only?
As I said I would
- Switch to Twenty Eleven to see if validation works
- If that doesn't work I would deactivate all plugins to see if that works
- If deactivating all the plugins works I would reactivate one by one to see which is the problem
- If validation works with Twenty Eleven I might try installing a new copy of Atahualpa in another folder and see if that works. Installing to a new folder allows you to switch back in case something goes wrong
This is all just general troubleshooting type stuff. There is no one right way.
Be sure and back up at least the database and preferable the entire site justl in case.