Hi,
I’ve looked at how the page layout is generated, and I see you are using the Divi page builder to display that sidebar. The problem is, that in this case it becomes the part of the post content, and it’s indexed as well.
The only solution is to switch back to the regular engine on the <span class=”code”>General Options -> Sources</span> panel: http://i.imgur.com/c9k7j0d.png
