Missing Mii Data?

I have a problem. I was about to play Super Smash Bros on the latest Citra Canary build.Then, A text appeared and it said something about Mii Data. What does it mean and what should I do?

Likely you are missing some system archives, follow the System Archives Dumping Guide

But I don’t have a real 3ds

LOL, then you’re out of luck as written there :slight_smile: