How to repair that punch script? (I've added the script on desc)

local player = game.Players.LocalPlayer repeat wait() until player.Character

--Player local char = player.Character

--User Inputs local mouse = player:GetMouse()

--Animation local animation = Instance.new("Animation") animation.AnimationId = "https://www.roblox.com/Asset?ID=1320870193"

local trackanimation = nil

local function playAnimation() trackanimation = player.Character.Humanoid:Loadanimation(animation) trackanimation:Play()

end

--Handle user inputs mouse.KeyDown:connect(function(Key) if Key == "e" then playAnimation() end end)~~~~~~~~~~~~~~~~~