This script plays one of two animations when a player loses HP. For some reason, sometimes the animation doesn't load and i get the error "Animation has to be a descendant of humanoid". It is only sometimes and it's really bothering me. The script is a Local script inside of the starter pack

thanks for reading

local Player = game.Players.LocalPlayer
local char = Player.Character or Player.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid")
Player.CharacterAdded:connect(function(character)
        char = character
    hum = char:WaitForChild("Humanoid")
end)
if not hum.Parent then
    repeat wait(0.2) until hum.Parent
end

local stan = Player:waitForChild("NonSave"):waitForChild("Stun")
local animTrack1 = hum:LoadAnimation(script:WaitForChild("oof"))
local animTrack2 = hum:LoadAnimation(script:WaitForChild("oof2"))

health = hum.Health
hum.Changed:connect(function()
if hum.Health < health and hum.Health > 0 then 
	local run =  math.random(1 ,2);
	if run == 1 then
    animTrack1:Play()
    stan.Value = true
    hum.WalkSpeed = 8
    wait(1)
    stan.Value = false
    hum.WalkSpeed = 16
	else if run == 2 then
	animTrack2:Play()
	stan.Value = true
	hum.WalkSpeed = 8
	wait(1)
	stan.Value = false
	hum.WalkSpeed = 16
	end
	end
health = hum.Health 
end
end)
Anonymous