Fortnite on nintendo switch LOG OUT?

I have several accounts on my nintendo switch, my main account, an account where I play games from 18 games, etc. And so guest accounts… For Fortnite I have taken the 18 Account. Now I want to buy but the Bettelpass, and have only on another account, on my Main account, money left… How can I log out on my account 18 and then log in to my Main account?

I think you just have to select your "Main Account" in the main menu, then start Fortnite, if necessary then log into your Fortnite account and then you should be able to buy the Battlepass.

If it does not work, I'm sorry, but I've never played Fortnite on the Nintendo Switch, and what I've described is just the way I'm guessing it could work.

Unfortunately, I have already tried this way, without success, thank you trz