My emotes gui work at first but after I reset my character it don't work anymore, how to fix it ?

Hi I've made a emote gui which it's very working but after I reset my character the emotes doesn't work anymore and it pops up this error and I haven't figure out how to fix it yet : " Loadanimation requires the humanoid object (player1.Humanoid) to be a descendant of the game object "

Here's my script

wait(1)
local user = game.Players.LocalPlayer
repeat
	wait()
until user.Character
local Input = game:GetService("UserInputService")
local animen = script.Parent.Parent.Parent:WaitForChild("Dances")
local speeder, speedval = animen:WaitForChild("Speeddancehaha"), 1
local mouse = user:GetMouse()
local scrollingframe = script.Parent
local anim
local char = user.Character
local humanoid = char:WaitForChild("Humanoid")
local ftime = 0.7
function playanim(id, lola)
	function setspeedval(num)
		speedval = num
		if anim then
		anim:AdjustSpeed(num)
		end
		speeder.Bar.Size = UDim2.new(num / 2 * 3 - 1, 0, 1, 0)
	end
	speeder.MouseButton1Down:Connect(function()
		while Input:IsMouseButtonPressed(Enum.UserInputType.MouseButton1) and game:GetService("RunService").RenderStepped:Wait() do
			local absz, absp = speeder.AbsoluteSize, speeder.AbsolutePosition
			local fact = math.min(1, math.max(0, (mouse.X - absp.X) / absz.X))
			setspeedval((fact + 1) * 2 / 3)
		end
	end)
	if char ~= nil and humanoid ~= nil then
		local id = "rbxassetid://" .. tostring(id)
		local oldanim = char:FindFirstChild("LocalAnimation")
		if anim ~= nil then
			anim:Stop(ftime / speedval)
		end
		if oldanim ~= nil then
			if oldanim.AnimationId == id then
				oldanim:Destroy()
				return
			end
			oldanim:Destroy()
		end
		local animation = Instance.new("Animation", char)
		animation.Name = "LocalAnimation"
		animation.AnimationId = id
		anim = humanoid:LoadAnimation(animation)
		anim:Play(ftime / speedval)
		if lola then
			setspeedval(lola.Speed)
		end
		anim:AdjustSpeed(speedval)
		function stopdance()
			if not anim then
				return
			end
	    anim:Stop(ftime / speedval)
	    anim = nil
	    speeder.Bar.Size, speedval = UDim2.new(0.5, 0, 1, 0), 1
end
        spawn(function()
	    while wait() do
		local hum = char:FindFirstChild("Humanoid")
		if hum and (hum.Sit or hum.MoveDirection.Magnitude > 0) then
			pcall(stopdance)
		end
	end
end)

Please help me fix this annoying errors

It's because you're not re-referencing the character's humanoid. Every time a character dies it destroys that old character and creates a new one, therefore, any references to character or humanoid are nil. You can fix the character like this

local char = player.Character or player.CharacterAdded:Wait() -- This essentially runs and sais if the character then char == character if not then it waits till its added and then it's then the character

The humanoid you could just re-reference every time you call the playanim function like so

function playAnim()
	local humanoid = char.Humanoid or char:WaitForChild("Humanoid") -- This either gets the valid humanoid or waits for a valid humanoid
end

If this answers your question please mark it as answered or an upvote. Good luck!

• Best Regards, - Syn

Try doing LocalScript and doing FireServer, but don't put LocalScript in the gui that doesn't restart when restarting