I have a GUI and when you click it, it's supposed to give you a sword. Why isn't it working?

So I have this GUI in my game and it's supposed to give you a sword every time you click it. I have the script, but it doesn't work and I don't know what to do about it. Any suggestions? (I'm a beginner)

Here is the code:

sword = game.Lighting.Sword:Clone()
script.Parent.MouseButton1Down:connect(function()
	local Players = game.Players:GetChildren()
	sword.Parent = game.Players.LocalPlayer.Backpack
end)

Your script works fine in studio but you need to get the specific player so it adds it to the player's specific backpack.

local player = game.Players.LocalPlayer -- Get the LocalPlayer
bp = player:WaitForChild("Backpack") -- Wait for the Backpack.
lighting = game:GetService("Lighting") -- Wait for the Lighting Service

sword = lighting:WaitForChild("Sword") -- // Wait for the sword to load.

script.Parent.MouseButton1Down:connect(function()
    print("Clicked the button!")
	local cloned = sword:Clone() -- Clone the Sword from Lighting.
	cloned.Parent = bp -- Parent it to the Player's backpack.
end)