I went over to my friend's house and played some World of Minecraft on his computer. Now, I'm at my house and it said could not verify player name. I fixed it by deleting some entry then redoing it. Now, it's saying could not verify player name for him. i think his World of Minecraft is trying to sign in as me. It would let him sign in as himself. When I was at his house it wouldn't let him sign in after I signed in. Is there a fix for this?