Help getting it to work please?

Hi everyone,

This plugin looks really cool, but I am having trouble getting it to work. Can you please assist?

My website: http://superemofriends.com/

Each square image is a post’s featured image. Here are my settings, altho I think the CSS classes I marked here must be wrong: http://screencast.com/t/BVwfwqwM

Thanks kindly in advance!

https://ww.wp.xz.cn/plugins/infinite-scroll/