Premium infinite scrolling plugin not working

On our blog home page (https://blog.closetcorepatterns.com), I’d like to use the Load More setting so that when users click the blue “Load more posts” button, more posts load right on that page via Ajax.

When I configure YITH using the Load More Button event type, the plugin’s “Load More” button appears as expected, but the posts never load. It just shows the spinner forever.

Settings are:

Navigation Selector: .navigation
Next Selector: .nav-previous
Item Selector: .post
Content Selector: .home #content-container
Event Type: Load More Button
Load Effect: Fade In

Setting toggled on for changing the URL

The page I need help with: [log in to see the link]