Can someone help me please? (Fortnite)

Can someone help me, I am a 13 year old boy and of course everyone from my school has Fortnite but I can not play it for one way or another. So when I’m out of the battlebus I suddenly get out of the match and that’s how I get an error message on my screen. I do not hack and I never downloaded them. My computer is appropriate for Fortnite. So yes, can someone help me please?

You have to go to the Fortnite forum, this is the unreal engine.