Sidebar appearing under content

Website: BBFeedster.com

I’ve done everything I can to try to figure out what is causing it. I tried looking for any undisclosed div tags but I couldn’t find any either. The entire website is like this, not just one or two pages.
I’m 99% certain this isn’t a width issue because it’s worked previously until something recently changed, I just don’t know what.

Can someone help me?