[Mattakil]

pawn Код:

CMD:tow(playerid, params[])
    {
    if(IsPlayerInAnyVehicle(playerid))
        {
        new vehicleid = GetPlayerVehicleID(playerid);
        new string[128];
        if(isnull(params))
            {
            SendClientMessage(playerid, -1, "Usage: /tow [VehicleID]");
            SendClientMessage(playerid, -1, "Hint: Use /dl to find the ID of the vehicle to tow");
            }
        if(!strcmp(params, "%s", false))
            {
            format(string, 3, "%s", params);
            if(GetVehicleModel(vehicleid) == 525 & 554 & 489 & 490)
                {
                AttachTrailerToVehicle(vehicleid, string);
                return 1;
                }
            }
        }
    return 0;
    }

It shows an error for the line "AttachTrailerToVehicle" How do I show the string in the function?