Re download blockland and read the disclaimer again. It states that badspot can take your key away for no reason and disable your ability to get a new key just because he was having a bad day.
Sometimes I laugh at the odd things he sometimes put in the game.
"Error.....blah.... if you are seeing this you screwed something up".
I was messing with some map, guess I put in a bad value or something and that happened lol.