My animations don't load! due to humanoid parenting problems, what do I do?

I have been working on an RPG game for a while now, and recently a "glitch" has popped up, making my animations not work at all, there is no output error NOW but the first time the glitch happened it said something the lines of "LoadAnimation requires the humanoid object (EzioEE.Humanoid.) to be a descendant of the game object. This was in the client, when I transferred it to server, it said that the animation cannot be loaded, after I added some waitforchild's to the script there is no output, and the script doesnt break it continues.

local animationList = {
    "rbxassetid://3054889435";
    "rbxassetid://3060546392";
    "rbxassetid://3060918785";
}

Tool.Activated:Connect(function()
	if Debounce and Char then
		if equipped == false then return end
		Debounce = false
		
		
		Count.Value = Count.Value + 1
		if Count.Value > #animationList then
			Count.Value = 0
			print("a")
		else
			swingHolder.AnimationId = animationList[Count.Value]
		end
		
		local LoadAnime = Char:WaitForChild("Humanoid"):LoadAnimation(swingHolder)
		print(LoadAnime)
		LoadAnime:Play()
		print("dasdas")
		if LoadAnime.IsPlaying and not OneHit.Value then
			OneHitEvent:FireServer()
			RE:FireServer()
		end
		if Count.Value >= 3 then wait(3)
			Debounce = true
			RE:FireServer()
			else
			wait(0.75)
		RE:FireServer()
		
		Debounce = true
		end
	end
end)