Why does my Robux Donation GUI Not Work in My Open/Close GUI? [closed]

For My donation button

local id = 360542490 

script.Parent.Donate10.MouseButton1Click:Connect(function()
    game.MarketplaceService:PromptProductPurchase(script.Parent.Parent.Parent, id)
end)

--script for one of my donation buttons

For my open/close GUI

local MainFrame = script.Parent
local CloseDonations = MainFrame:WaitForChild("CloseDonations")
local OpenDonations = MainFrame.Parent:WaitForChild("OpenDonations")

OpenDonations.MouseButton1Click:connect(function()
    MainFrame.Visible = true
end)

CloseDonations.MouseButton1Click:connect(function()
    OpenDonations.Visible = true
    MainFrame.Visible = false
end)
--script for my open close gui