I got the invite code & I downloaded the app...

So, I downloaded the app and I got the invite email, but for some reason, it keeps giving me this message that the app requires two gigabytes of RAM and it says that I have one gigabyte available. I have an iPhone 6S Plus and I meet all the requirements for the game. Please Epic Games, tell me what I should do because I have been waiting to play this game on Mobile for so long. Please help me out.

Ahmed the ut master about Fortnite, v3.3.1