[ItsRobinson]

PHP Code:

        PlayerInfo[id][Duelingto] = -1;
        PlayerInfo[id][Maker] = -1;
        PlayerInfo[id][Opponent] = -1;
        PlayerInfo[playerid][LoseDuels] ++;
        PlayerInfo[id][WinDuels] ++; 


We can't see your whole code, but I'd presuming these would need to be in the above bit no?

PHP Code:

        PlayerInfo[playerid][inDuel] = 0;
        PlayerInfo[id][inDuel] = 0;