PUDBOTCodeEdit (ScreenGUI) is not a valid member of Part. How do I fix this error?

So I'm trying to make a programmable robot in ROBLOX that can do fun things but I come across this error and I do not know how to solve it.

local localadmin = {"GiveMeYourPudding"}

function OpenAccess()
	local PBCE = script.Parent.PUDBOTCodeEdit
	PBCE.Parent = game.StarterGui
end

script.Parent.ClickDetector.MouseClick:Connect(function(plr)
	for i,v in pairs(localadmin) do
		if v == plr.Name then
			OpenAccess()
		end
	end
end)

This is a link to the picture of my Explorer (everything that is unnecessary to this I put into Lighting): https://cdn.discordapp.com/attachments/502963941979324435/520985404447653901/unknown.png