Ban for literally no reason?

[LocalMothFucker]

BYOND Name: Local Moth

Reason Banned: It's just a blank error, stating "Banned by host." No extra info at all, not even a reason

Admin who banned: I have literally no idea dude

Length Banned: Literally. No. Idea.

Appeal Reason: I was introduced to SS13 about an hour ago, and haven't even touched this server prior to trying to join, this ban is all I saw when I tried to play for the first time. Why?

This is the screen I'm greeted with every time I try to join:

[Jay]

I'm not sure what to tell you, but that key doesn't exist. If you want, you can PM me your IP or something, but I can't unban a key that hasn't even been on the server before.

[Kenzie]

If this hasn't already been handled not much we can do about it without more information tbh.