I've gotten an error a couple times, all it says is "An error has occurred" with it saying something happened, contact nintendo and whatnot.
First time I got this I was visiting a friends town and experienced a little bit of lag when picking up items off the ground then upon leaving the town I got this error and of course my progress wasn't saved so I lost all the fruit and such that I had gathered from my friends town.
Second time I got this simple error was when someone was coming to my town.
Is there something I can do to fix whatever is causing these errors? or are they just.. there and unfixable?