Help on gamepass and leaderboard?

I can't seem to get my gamepasses to work. My leaderboard works fine, but the gamepasses won't work. In game I get a "Unable to cast value to Object" what does this mean?

Here's my gamepass script (it's in a GUI):

local Player = script.Parent.Parent.Parent.Parent
local GamePassID = 125414272

function onClicked()
    if game:GetService("GamePassService"):PlayerHasPass(Player.userId,GamePassID) then 
      Player:findFirstChild("leaderstats").Cash.Value = 100000
        script.Parent.Visible = false
        else
        game:GetService("MarketplaceService"):PromptPurchase(Player,GamePassID)
    end
end

script.Parent.MouseButton1Click:connect(onClicked)

And here's my leaderboard, if that effects anything (it works fine):

function onPlayerEntered(newPlayer)
    wait(.5)
    local stats = Instance.new("IntValue")
    stats.Name = "leaderstats"
    local stats2 = Instance.new("IntValue")
    stats2.Name = "Tycoon"

    local Cash = Instance.new("IntValue")

    Cash.Name = "Cash" 
    Cash.Value = 0

    Cash.Parent = stats
    stats2.Parent = newPlayer   
    stats.Parent = newPlayer
end

game.Players.ChildAdded:connect(onPlayerEntered)