error 035: argument type mismatch (argument 2)

NearByMessage(playerid, COLOR_WHITE, string, 12);

}
stock NearByMessage(playerid, color, string[], Float:Range = 10.0)
{
    new Float:pPos[3];
    GetPlayerPos(playerid, pPos[0], pPos[1], pPos[2]);

    foreach(Player, i)
    {
        if(IsPlayerInRangeOfPoint(i, Range, pPos[0], pPos[1], pPos[2]) && GetPlayerVirtualWorld(i) == GetPlayerVirtualWorld(playerid))
        {
            SendClientMessage(i, color, string);
        }
    }
    return 1;
}