Fortnite does not start in the epicgames launcher I press on start then loads that a 2 sec and then comes back start what should I do?

Fortnite does not start in the epicgames launcher I press on start then loads that a 2 sec and then comes back start what should I do?

Restart the computer

Restart PC / Laptop, evnt. Reinstall the game.

Uninstall and play something else

I have already reinstalled

I have already reinstalled

Evnt. Also uninstall Epic Luncher, look that everything is cleared and start clean, evnt. Even a clean reboot through Windows perform (see settings), but there are all games lost and so, in any case before inform!