Well the app home page is not as easy to edit .
There are four sections in home page .
1. featured courses with banner ,
2 . course categories ,
3 . popular courses ,
4. again featured courses .
So its features courses and course category block that is missing from your home page .
To make courses featured please refer : https://wplms.io/support/knowledge-base/featured-courses/
To check course category please try setting an order in your categories : http://prntscr.com/khwo98