I sat my 3DS down for a bit, and when I returned, my ACNL game had been removed from the 3DS. My save file was loaded, but I don't think it was saving or anything. My game was corrupted, forcing a restart. I can create a new town without any issues, but as soon as I step into the town hall, I get a message that says, "An error has occurred, forcing the software to close. The system will now restart." Is there a way to fix this without buying a new copy?