screen gui not created after humanoid dies in FE?

Basically when the character dies, i need the screen to of faded into a black, so when the player dies, it doesnt do that, only in studio it works this is the local script:

game.Players.PlayerAdded:Connect(function(player)
	
	while true do
	
		player.Character.Humanoid.Died:Connect(function()
	
			script.Parent.RemoteEvent:FireServer()
	
		end)
	end
end)

so it fires the remote event. this is the script

script.Parent.RemoteEvent.OnServerEvent:Connect(function(plr)

game.ReplicatedStorage.Scripts:Clone().Parent = game.StarterGui
game.ReplicatedStorage.ScreenGui:Clone().Parent = game.StarterGui

local Screen = Instance.new("ScreenGui", script.Parent.Parent)
	local Fade = Instance.new("Frame", Screen)
	local nope = 0
	
	Screen.Enabled = true
	Fade.Size = UDim2.new(1,0,1,0)
	Fade.BackgroundColor3 = Color3.fromRGB(0,0,0)
	Fade.BackgroundTransparency = 2
	
	game.Players.LocalPlayer:WaitForChild("PlayerGui"):SetTopbarTransparency(0)
	
	repeat
		
		Fade.BackgroundTransparency = Fade.BackgroundTransparency - .1
		nope = nope + 1
		wait(.01)
		
	until nope == 200
	
	nope = 0

end)

fade.Backgroundtransparency is 2 just to give more of a delay, but i have noo idea why it is only working in studio

dude... You are trying to say in your first script... when the player has joined, if he died then fire remote... Alright try this.. from a localscript in startergui

repeat wait() until game.Players.LocalPlayer

local char = game.Players.LocalPlayer.Character

char:WaitForChild("Humanoid").Died:Connect(function()
	script.Parent.RemoteEvent:FireServer()
end)

Alright this should fire the event when the player dies..

Ok, so here I re-wrote your whole script. Put this into a LocalScript and you should be good to go:

local player = game.Players.LocalPlayer
local char = player.Character
if char == nil then
	player.CharacterAdded:Wait()
end
char = player.Character

local playerGui = player.PlayerGui

local function fadeBackround()
	local screen = Instance.new("ScreenGui")
	screen.Parent = playerGui

	local fade = Instance.new("Frame")
	fade.Size = UDim2.new(0,1,0,1)
	fade.BackgroundColor3 = Color3.fromRGB(0,0,0)
	fade.BackgroundTransparency = 1
	fade.Parent = screen

	playerGui:SetTopbarTransparency(1)

	repeat wait(0.01)
		fade.BackroundTransparency = fade.BackroundTransparency - 0.1
		playerGui:SetTopbarTransparency(playerGui:GetTopbarTransparency() - 0.1)
	until fade.BackroundTransparency <= 0
end

char:WaitForChild("Humanoid").Died:Connect(fadeBackround)

And that should be it! Remember, you don't need to use RemoteEvents for modifying PlayerGui