Every time I vote it tells me invalid player name

Question

Every time I vote on Minecraft server list it tells me invalid player name and my vote does not get counted. My ign is gotmudd02, exactly like that and that's how I enter it when tryin tand vote.  Any help wouldbe greatly appreciated.

Answer 1

same thing is happening to me too. I read that it says it is invalid if it is not a premium account but mine is :(