Duplicate Post when STicky

Any one have any ideas why when I make a post sticky in Hemingway Rewritten it displays the post twice? I have removed the sticky notification, so it will not show on the site currently.

The blog I need help with is thescientificparent.org.

Essentially it shows the post I’ve made sticky with the fancy ‘featured’ box on there, then immediately below it shows it again as if it was the most recent post. :/