Posts in "WordPress Popular Posts" widget aren't appearing

I downloaded the plugin and while it does show the numbers of readers and certain post has the posts in the widget are not appearing. I think I’ve clicked all the right buttons so any suggestions would be great.

Here’s an article where the widget is placed on the sidebar at the bottom but alas no posts.

http://www.internationalpolicydigest.org/2013/11/16/somaliland-progress-towards-regional-international-role/