why wont my animation play? there are no errors shown in output

local CanAttack = true
local mouse = game.Players.LocalPlayer
tool = script.Parent
char = game.Players.LocalPlayer.Character
humanoid = char:WaitForChild("Humanoid")



function onClicked()

    local attack = humanoid:LoadAnimation(script.Parent.attack)
            attack:Play()

    if CanAttack == true then
        attack:Play()
        CanAttack = false
        wait(1)
        attack:Stop()
        CanAttack = true
        script.Parent.CanDamage.Value = true
    end
end

function onEquipped(mouse)
    local attack = humanoid:LoadAnimation(script.Parent.attack)
    mouse.Button1Down:connect(onClicked)
end

tool.Equipped:connect(onEquipped)

Any ideas on why it won't play?