Fortnite does not start (a kind of error message) (Pc)?

I have a problem with Fortnite! I can start the Epicgames Launcher, but if I start Fortnite / press the Start button then a kind of error message comes up. There's the need to reinstall the spidl to possibly eliminate the problem. I have already reinstalled Fortnite twice but it does not work. Can someone help me please?

No idea! Maybe your computer is confused because it is upside down?! O_O

Oh, the picture just turned 😅

Unfortunately, the photo was shot (taken with the phone) 😅

The photo shows: The code can't be continued because it was not found. Reinstalling the program may solve the problem.

Delete all files related to the launcher and the game

then reinstall

I've already reinstalled the launcher: / Do I have something else to do?