[Color Way Theme] How do I get rid of the Right Sidebar?

In the website that I am working on http://caribbeancrossroads.org/symposium/, I want to get rid of the Right Sidebar.

I have done it before (see here http://caribbeancrossroads.org/press/press-releases/). However, to do this I remember clicking on an option that said “Blank Template”, but I can’t seem to find this option anywhere anymore.

Also, the widget features are all empty, and all the pages are “Pages” not “Posts.”

Any suggestions? Thanks!