Unable to open shop GUI after closing?

I found this script on devfourms and decided to use it to open a GUI with a proximityprompt. I can open the GUI at first but after I close it, I couldn't

Edit: I forgot to mention, this is a local script in StarterGUI

local shop = script.Parent
local button = shop.Background.ImageButton

local prompt = workspace.krxtenaa.PromptPart.ProximityPrompt

prompt.Triggered:Connect(function()
	shop.Enabled = true
end)

button.Activated:Connect(function()
	shop.Enabled = false
end)