Whenever I want to go into the game, there's only an easy anticheat message and then the app "disappears" again. What can I do?
Do you have a hack or aimot or something?
No, definitely not. So I didn't do anything.
Should I just restart my computer (but don't think so)? Or what should i do?
Give it a try, otherwise you'd better play real games
So it doesn't work since I just clicked away when I received a memory message…
Do you play on pc or console?
If you are playing on PC you can click Verify in the launcher at Library under Fortnite at the 3 points. This may solve your problem.
Then, as far as I know, all files are checked for errors.
I play on PC at only 30 FPS haha
And it just says check, and I did that yesterday.
Yes, that's what I meant, then I don't know what to do next, sry, maybe write to support