Successfully remove comments but don’t show any previous posts

Good morning !

I’m having trouble integrating Auto Load Next Post to my website : I created a Child Theme then modified functions.php to add theme support. As you can see in my website https://scienceexploits.com/ no post is loading after the original one but comments area is well removed (I’m using Facebook Lazy Load).

Here is my actual configuration : https://i.imgur.com/cvElVgi.png

Can you enlight me please ? Thanks a lot !