WordPress SEO by Yoast is causing an error in the RSS feed.
With Chrome, the feed gives an error - "Extra content at the end of the document"
When tested with http://sitecheck.sucuri.net the results are - "Cannot modify header information - headers already sent"
Screenshot - http://imgur.com/59Eu7JO
RSS Feed - http://kdreports.com/feed/
Sucuri Report - http://sitecheck.sucuri.net/results/kdreports.com/
Screenshot - http://imgur.com/VGkXllq
What I have already tried
Deactivate ALL plugins - Feed works
Deactivate ONLY Yoast - Feed works
Change theme to Twenty Twelve, with Yoast active - Feed does NOT work
Change theme to Twenty Twelce, with Yoast inactive - Feed works
Uninstall Yoast, then reinstall, no settings entered - Feed does NOT work
Uninstall Yoast, then reinstall, former settings imported - Feed does NOT work
I should also note, that Yoast and WordPress are both up to date.
As well, I have tested the feeds on other sites using Yoast and have not encountered errors