HELP PRIVATE CAR ON COMMAND

[DeathMta]

function AutoDeath ( player ) 
if getElementType ( thePlayer ) == "player" then 
local cuenta = getPlayerAccount( player ) 
local x, y, z = getElementPosition(player) 
local accountName = ( cuenta and getAccountName ( cuenta ) or "" ) 
            if not( accountName == "123") then 
      vehiculo = createVehicle(422, x + 5, y, z) 
      Interior = createColSphere(x + 5, y, z, 4) 
      attachElements(Interior, vehiculo, 0, 0, 0) 
      setElementData(Interior, "parent", vehiculo) 
      setElementData(vehiculo, "parent", Interior) 
      setElementData(Interior, "vehicle", true) 
      setElementData(Interior, "MAX_Slots", 20) 
      setElementData(Interior, "Tire_inVehicle", 4) 
      setElementData(Interior, "Engine_inVehicle", 1) 
      setElementData(Interior, "Parts_inVehicle", 1) 
      setElementData(Interior, "fuel", 80)   
         
        outputChatBox("[Death]:Te Has Equipado",player,84, 84, 84,true) 
    else 
 outputChatBox("No Eres Death Para Usar Este Comando",player,84,84,84,true) 
end 
end 
end 
addCommandHandler("death1",AutoDeath) 

[JR10]

The function's first argument is clearly 'player', yet you're using thePlayer.

if getElementType ( player ) == "player" then 

Then the logic issue, this is a command handler, vehicles can't execute commands, or any other non-player element type for that matter. So, you don't need to check for the type because it will always be a player.