The server's programme cannot recognize the threefold repetition ... can this bug be fixed?

If a 3-fold repetition has occured, the board's interface usually changes the "Offer Draw" button into a "Claim Draw" button. Click on it to claim the draw. This behavior is  an attempt to mirror over-the-board chess, where you must claim the draw.

what ur try to say?can u write more simple and easy english....

i cant understanding ur topic..what is threefold?

Oh, "God2", you are a newbird in Chess, I see. One of the laws of Chess says that if a position occurs after three consecutive or alternated moves on the chessboard, the player who must play has got a draw (1/2 - 1/2). Some programs do recognize this occurrence and state something like "Draw due to threefold rep" (notably at EDIT- other sites)   

unnecessary