(I was already on 11.13 so maybe this is why this happened.) I was just casually scrolling through my 3ds home menu. I got a popup saying that my system needed to update. I just pressed yes and it updated as usual. When it rebooted the 3ds, it showed an "exception occurred undefined instruction" so I pressed b and turned it off and on again. It still shows that. Is there a way to fix this?