[Patrick]

Alright, I did alot of mistake there due to I was in a hurry :P

Full Fix Code

pawn Код:

CMD:customvehicle(playerid, params[])
{
    new playerb, string[128], modelid, slot, Positions[3];

    if(sscanf(params, "udd", playerb, slot, modelid)) 
        return SendClientMessage(playerid, COLOR_GREY, "USAGE: /customvehicle [playerid] [1-3] [modelid]");

    GetPlayerPos(playerb, Positions[0], Positions[1], Positions[2]);

    if(!IsPlayerLoggedIn(playerid)) 
        return SendClientMessage(playerid, COLOR_GREY, "You need to login first before using any command.");

    if(400 <= modelid <= 611) 
        return SendClientMessage(playerid, COLOR_GREY, "Vehicles are between 400 and 611.");

    if(PlayerInfo[playerid][pAdmin] < 3) 
        return SendClientMessage(playerid, COLOR_GREY, "You are not authorized to use this command.");

    switch(slot)
    {
        case 1:
        {
            PlayerInfo[playerb][pVeh] = CreateVehicle(modelid, Positions[0], Positions[1], Positions[2], 0, 0, 32000);

            GetVehiclePos(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vX], PlayerInfo[playerb][vY], PlayerInfo[playerb][vZ]);
            GetVehicleZAngle(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vA]);

            PlayerInfo[playerb][vC1] = 0, PlayerInfo[playerb][vC2] = 0,
            PlayerInfo[playerb][vLocked] = 1, PlayerInfo[playerb][vModel] = modelid;
            SetVehicleParamsEx(PlayerInfo[playerb][pVeh], 0, 0, 0, 1, 0, 0, 0);

            format(string, sizeof(string), "{FF0000}[Admin Warn]{FF6347} %s has created a custom vehicle for (Slot 1) %s.", NORPN(playerid), NORPN(playerb)), 
            SendAdminMessage(COLOR_DARKRED, 1, string);
        }
        case 2:
        {
            PlayerInfo[playerb][pVeh] = CreateVehicle(modelid, Positions[0], Positions[1], Positions[2], 0, 0, 32000);

            GetVehiclePos(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vX], PlayerInfo[playerb][vY], PlayerInfo[playerb][vZ]);
            GetVehicleZAngle(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vA]);

            PlayerInfo[playerb][vC1] = 0, PlayerInfo[playerb][vC2] = 0,
            PlayerInfo[playerb][vLocked] = 1, PlayerInfo[playerb][vModel] = modelid;
            SetVehicleParamsEx(PlayerInfo[playerb][pVeh], 0, 0, 0, 1, 0, 0, 0);

            format(string, sizeof(string), "{FF0000}[Admin Warn]{FF6347} %s has created a custom vehicle for (Slot 2) %s.", NORPN(playerid), NORPN(playerb)), 
            SendAdminMessage(COLOR_DARKRED, 1, string);
        }
        case 3:
        {
            PlayerInfo[playerb][pVeh] = CreateVehicle(modelid, Positions[0], Positions[1], Positions[2], 0, 0, 32000);

            GetVehiclePos(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vX], PlayerInfo[playerb][vY], PlayerInfo[playerb][vZ]);
            GetVehicleZAngle(PlayerInfo[playerb][pVeh], PlayerInfo[playerb][vA]);

            PlayerInfo[playerb][vC1] = 0, PlayerInfo[playerb][vC2] = 0,
            PlayerInfo[playerb][vLocked] = 1, PlayerInfo[playerb][vModel] = modelid;
            SetVehicleParamsEx(PlayerInfo[playerb][pVeh], 0, 0, 0, 1, 0, 0, 0);

            format(string, sizeof(string), "{FF0000}[Admin Warn]{FF6347} %s has created a custom vehicle for (Slot 3) %s.", NORPN(playerid), NORPN(playerb)), 
            SendAdminMessage(COLOR_DARKRED, 1, string);
        }
    }
    return true;
}