I was playing the snake game. After it said game over and to wait for it to submit my score, it said that I don't have access to some page. After a while, I played snake again and it did the same thing. Is this because of something I did or what?

It happens sometimes-- It usually says something about not having privileges to view the page and whatnot.

It doesn't mess up your gold gained from the game and the only thing it disallows you from doing is putting a comment with your score-- so don't be too alarmed by it. :3 There's nothing wrong with your account, just some sort of hiccup on the back end somewhere.