Fortnite won’t open on iPad

I just downloaded the beta for fortnite on my iPad (it’s compatible) and whenever I try to open it, the app closes after displaying the epic games logo for a few seconds

Hello, thank you for reporting your issues with Fortnite. However, Answerhub is meant for issues relating directly to Unreal Engine 4 rather than our game titles. For assistance with Fortnite, please visit the following link:

http://fortnitehelp.epicgames.com/

If you cannot find the solution to the problem you’re encountering, please use the Email Us link on that page to contact Player Support for further assistance.

Why won’t me fortnight game work on my iPad