Get the latest posts featured images on first page.

You need to ask the vendor of the theme as commercial themes are not supported here.

hm, I said wrong, they don’t do this, just seems like, and that’s why I’m trying to figure it out how to do. Also, I’ve just put the link as an example.

general:

you need to add a secondary loop to the front page template:

https://codex.www.ads-software.com/The_Loop#Multiple_Loops

with a custom query:

https://codex.www.ads-software.com/Class_Reference/WP_Query

querying for posts with a featured image:

$args = array('meta_key' => '_thumbnail_id', 'posts_per_page' => 3);

https://codex.www.ads-software.com/Post_Thumbnails

details depend on the used theme.

The support forum for this theme appears to be here. Cheers!