Why won't this car script work?

I tried to make it so if a user has a gamepass, it clone's the gui and change's the parent to the player, it prompt's the user to purchase the gamepass, even if they have it. Can someone tell me what I did wrong?

01gamepass = 174856301
02Check = {}
03 
04 
05 
06wait(0.1)
07Blacklist = {}
08GroupID = 0
09seat = script.Parent
10cur = nil
11script.Parent.ChildAdded:connect(function(it)
12        if it:IsA("Weld") then
13        tempcur = it.Part1.Parent
14        if cur ~= tempcur and cur ~= nil then tempcur.Humanoid.Sit = false return end
15        if cur == tempcur then print("same guy!")return end
16        print(tempcur.Name)
17        done = false
18        cur = tempcur
19        local Player = game.Players:GetPlayerFromCharacter(cur)
20        for _,i in pairs (Check) do
21            if i == game:GetService("MarketplaceService"):PlayerOwnsAsset(Player,gamepass) then
22                done = true
23                if Player.PlayerGui:findFirstChild("Car") then
24                    done = false
25                end
26            end
27        end
28        for _,i in pairs (Blacklist) do
29            if cur.Name == i then
30                done = false
31            end
32        end
33        if done == false then
34            game:GetService("MarketplaceService"):PromptPurchase(Player,gamepass)
35            cur.Humanoid.Sit = false
36            cur = nil
37            Player = nil
38            print(tempcur.Name.." was booted")
39            script.Parent.Parent.Parent = workspace
40        else
41            script.Car:Clone().Parent = Player.PlayerGui
42            game.Players:GetPlayerFromCharacter(cur).PlayerGui.Car.Frame.Seat.Value = script.Parent
43            game.Players:GetPlayerFromCharacter(cur).PlayerGui.Car.Frame.LocalScript.Disabled = false
44            script.Parent.Parent.Parent = cur
45            end
46    elseif it:IsA("IntValue") then
47        print("Bye Bye user!")
48        cur = nil
49        Player = nil
50        script.Parent.Parent.Parent = workspace
51    end
52end)
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Can you explain your code? This doesn't seem to make any sense. What is the purpose of the different variable? BlueTaslem 18071 — 10y

To be honest, I don't know. spacek531 made it, I just tried to edit it and make it work with a gamepass. InfinitivePixelsJr 542 — 10y

Why won't this car script work?

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