simothemaster

I lost my world. i was playing in singleplayer than the suddently game crashes. It already appended a few times but this time i re-open attack of the b-team after an update. the game starts but there isn't my world. I close minecraft and open the folder go to "saves" and there it is but the game doesn't reed it. Someone can help me? I've tried various things but it still doesn't work