I’m not sure I understand correctly - but do you only have legit games installed on your console, or did you install ~unofficial~ stuff?
are the Nintendo servers blocked from communicating with your console? because if the servers are blocked (to prevent a ban), then you cannot use Luna to dump islands.
but also; if you have installed anything you didn’t pay for, and remove the server block to go online and use Luna, you will get the console banned, because Nintendo will see that you have ~unofficial software~ installed.
the only way to use a modded Switch with Luna is if your Switch is clean, because you’re communicating with Nintendo servers while using it