Why does it keep saying the Character value is nil when I try to use an animation?

I am trying to make an idle and attack animation for a sword, but when I try to get the animation to run on the humanoid, it won't work saying, "attempt to index field 'Character' (a nil value)." Someone, please assist me on how to fix this problem.

Here's the local script:

local CanAttack = true
local idle = game.Players.LocalPlayer.Character:WaitForChild("Humanoid"):LoadAnimation(script.idle)
local attack = game.Players.LocalPlayer.Character:WaitForChild("Humanoid"):LoadAnimation(script.attack)
script.Parent.Equipped:Connect(function()
    idle:Play()
    script.Parent.Activated:Connect(function()
        if CanAttack then
            idle:Stop()
            attack:Play()
            CanAttack = false
            wait(1)
            attack:Stop()
            idle:Play()
            CanAttack = true
            script.Parent.CanDamage.Value = true
        end
    end)
end)