Localscript doesn't update GUI label?

Sup, so I am doing an tool for a bus game and I want a tool which checks if player has ticket or not. I already have the tool and checking for the player's name, but when I want to update the GUI it just doesn't work. It normally prints to the output. It doesn't throw any errors. Here's my code:

script.Parent.Equipped:Connect(function(mouse)
	human = script.Parent.Parent.Name
	local humanP = game.Players:findFirstChild(human)
	script.Parent.ScanGUI:clone().Parent = game.Players:findFirstChild(human).PlayerGui
	mouse.Button1Down:Connect(function()
		if mouse.Target.Parent:FindFirstChild("Humanoid") then
			print(mouse.Target.Parent.Name)
			local guimouse = mouse.Target.Parent.Name
			local guiname = game.Players:findFirstChild(human).PlayerGui.ScanGUI.Username
			guiname = guimouse
		else
			print("not a player")
		end

	end)
end)

script.Parent.Unequipped:Connect(function()
	game.Players:findFirstChild(human).PlayerGui.ScanGUI:remove()
end)

and here's my workspace: https://prnt.sc/v3swy0

Thank you in advance for any help.