More Problems with Timed Attack racer Tutorial

7.4 minutes into the video:
it asks you to open the Vehicle Advanced game mode tab. When i open it, it is completely empty! WTF!!! I have attached images so people can see/ help if they can. Please can anyone help i have been trying to learn ue4 for so long and feel i am getting no where as everything i attempt messes up at some point.

I have the same problem as well

go to windows and select class defaults