Game was working fine now Bad serial at setup?

I have been playing the game fine I come home and my keys finally banned so I change it like I always do With Raiins changer, and I have tried using it with Sixlauncher Dayzcommander and my game just quits and says bad serial given at setup any help! Iv'e also tried Darkys key changer.

Maybe you entered the key wrong or where you bought it from gave you an invalid key?

invald key add me if you want to buy keys for 3$

skythebadass my profits go back to a big gaming community if you want to join

That means you put a bad key into the changer, it's not the changers fault, nor the games fault. Buy keys from reliable sources next time.