PromptProductPurchase not working on Gamepads Door?

So, I have a gamepads door (ROBLOX's VIP Door) and I added a PromptProductPurchase part. When I test the game (in studio) there's an error and I can't purchase the gamepass. No, I don't have the gamepass already.

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--| WaitForChild |--
--------------------

-- Waits for parent.child to exist, then returns it
local function WaitForChild(parent, childName)
    assert(parent, "ERROR: WaitForChild: parent is nil")
    while not parent:FindFirstChild(childName) do parent.ChildAdded:wait() end
    return parent[childName]
end

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--| Variables |--
-----------------

local GamePassService = Game:GetService('GamePassService')
local PlayersService = Game:GetService('Players')

local VipDoor = script.Parent

local GamePassIdObject = WaitForChild(script, 'GamePassId')

local JustTouched = {}

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--| Functions |--
-----------------

-- Finds out which side the player is on and teleports them to the other
local function TeleportToOtherSide(character, hitPart)
    local bottomOfDoor = VipDoor.CFrame.p - Vector3.new(0, VipDoor.Size.Y / 2, 0)
    local inFrontOfDoor = bottomOfDoor + VipDoor.CFrame.lookVector * 3
    local behindDoor = bottomOfDoor - VipDoor.CFrame.lookVector * 3

    local distanceToFront = (inFrontOfDoor - hitPart.Position).magnitude
    local distanceToBack = (behindDoor - hitPart.Position).magnitude
    if distanceToFront < distanceToBack then
        character:MoveTo(behindDoor)
    else
        character:MoveTo(inFrontOfDoor)
    end
end

-- When a player with the game pass touches the door, teleport them to the other side
local function OnTouched(otherPart)
    if otherPart and otherPart.Parent and otherPart.Parent:FindFirstChild('Humanoid') then
        local player = PlayersService:GetPlayerFromCharacter(otherPart.Parent)
        if player and not JustTouched[player] then
            JustTouched[player] = time()
            if GamePassService:PlayerHasPass(player, GamePassIdObject.Value) then
    TeleportToOtherSide(player.Character, otherPart)
else
    game:GetService("MarketplaceService"):PromptProductPurchase(player, GamePassIdObject.Value)
end     
        end
    end
end

-- Removes old entries in JustTouched
local function RemoveOldTouches()
    for player, touchTime in pairs(JustTouched) do
        if time() > touchTime + 0.3 then
            JustTouched[player] = nil
        end
    end
end

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--| Script Logic |--
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VipDoor.Touched:connect(OnTouched)

while true do
    RemoveOldTouches()
    wait(1/30)
end