You are playing a Chess 960 game. That's why there is this icon 
right next to the game header.
If you don't want to play 960, you can always resign (unless that is what you are trying to do and it fails). If that is the case, then message your opponent and let yourself time out.
Cound you please check on this game?http://www.chess.com/echess/game.html?id=44125740 The game line-up is incorrect (Queen and Bishop's position). I try to abort the game, but nothing happens. Please help.