In the free version, the posts displayed in the slider is not repeated below on the homepage.
Add More Posts/Nothing Found appears when you haven’t published enough blog posts to appear on the homepage. The Banner slider uses your latest three posts. If you publish more than three posts, then Add More Posts/Nothing Found message will disappear.
Alternatively, you can decrease the number of posts displaying in the slider via Admin Dashboard > Appearance > Customize > General Settings > Slider/Banner Section to get rid of the message.
Only in the Pro version of the theme, there is an option to repeat the posts in the slider and on the homepage.