How Can I make the tool unequip part to work?

What's wrong with this script?~~~~~~~~~~~~~~~~~

local player = game.Players.LocalPlayer

repeat wait(1) until player.Character -- Waits until the player's character isn't nil.


script.Parent.Equipped:connect(function()
	script.Parent.Parent.Humanoid.HipHeight = -1.4
end)

script.Parent.Unequipped:connect(function()
	script.Parent.Parent.Humanoid.HipHeight = 0
end)

Once you unequip the tool, it's parented to the Backpack, and you're using script.Parent to get the player's character so maybe that's why.

Btw, use Connect() instead of connect() as it's deprecated.

local plr = game:GetService("Players").LocalPlayer
local tool = script.Parent

if not plr.Character then plr.CharacterAdded:Wait() end -- Waits until the player's character isn't nil.

tool.Equipped:Connect(function()
	plr.Character:WaitForChild("Humanoid").HipHeight = -1.4
end)

tool.Unequipped:Connect(function()
	plr.Character:WaitForChild("Humanoid").HipHeight = 0
end)