RSS Feed – troubleshoot

I have been reading up on the rss feed and the errors it can have.
I have disabled all plugins as well as swithced to classic view yet i can still not get the RSS feeds to work with my blog.
I checked it with/without theme/plugins and the validtaion error is always the same.
I apparently have to remove a space but am having a difficult time figuring tout which file to edit.
I have check wp-rss2 and wp-atom and there are no spaces at all between the lines.
Can someone please look at my validation link and let me know which file i shoudl eb looking at. I have left the updated theme and plugins active.
https://feedvalidator.org/check.cgi?url=http%3a%2f%2fchrisbeck.info%2f%3ffeed%3drss2
Thanks a bunch guys