[M3mPHi$_S3]

you should add this at the top of your script !!!!

pawn Код:

new vehicleid [ MAX_PLAYERS ];

pawn Код:

new vehicleid [ MAX_PLAYERS ];

command:(lock, playerid, params[])
{
    if(!IsPlayerInAnyVehicle(playerid)) return SendClientMessage(playerid, RED, "You must be in a vehicle to use this command!");

    new
        VehicleID = GetPlayerVehicleID(playerid);
        
    if(OwnedCar(VehicleID) != 0)
    {
        if(strmatch(Vehicles[OwnedCar(VehicleID)][VehicleOwner], pName(playerid)))
        {
            Vehicles[OwnedCar(VehicleID)][vLocked] = 1;
            GetVehicleParamsEx(vehicleid, engine, lights, alarm, doors, bonnet, boot, objective);
            SetVehicleParamsEx(vehicleid, engine, lights, alarm, 0, bonnet, boot, objective);
            SendClientMessage(playerid, -1, "You've successfully locked your vehicle!");
            SaveOwnedCar(OwnedCar(VehicleID));
            return 1;
        }
        else return SendClientMessage(playerid, RED, "This vehicle does not belong to you!");
    }
    else return SendClientMessage(playerid, RED, "This is not a private vehicle!");
}

TRy now with this !!!