The button is designed to become a one-use button, all of the parts of the script are working except the script doesn't give the tool it must give to player.

The output says that the line 12 attempts to use clone method (a nil value)

What's wrong with the localscript?

local button = script.Parent
local clicked = false

button.MouseButton1Click:connect(function(player)
	if not clicked then
		clicked = true
		if not game.ServerStorage:FindFirstChild("Tools") then
			local model = Instance.new("Model", game.ServerStorage)
			model.Name = "Tools"
		end
		local tools = game.ServerStorage.Tools:GetChildren()
		tools:Clone().Parent = button.Parent.Parent.Parent.Backpack
		button.Parent:Destroy()
		clicked = false
	end
end)