I have a fireball animation(which btw is terrible) but it will not work and idk why this is the output -- 15:43:12.942 - Unable to cast value to Object

Animation = script:FindFirstChild("Animation")
player = game.Players.LocalPlayer
hum = player.Character.Humanoid
mouse = player:GetMouse()

mouse.KeyDown:connect(function(key)
	local debounce = false
	local animTrack = hum:LoadAnimation("FireBall")
	if key == "f" and debounce == false then
		debounce = true
		animTrack:Play()
		wait(.1)
		debounce = false
	end
end)
Anonymous