Sep 23, 2018, 15:3909/23/18
I had the same thing happen after one of the last updates, had to submit a request in-game for Plarium support to fix it in order to change my name again.
Only took a day or two to resolve, they just reset it to the player_# name I started out with. As far as I know that’s all you can do, but you won’t be able to add the color code back, so keep that in mind.