Need help making menu multiplayer compatible

[inkfog (inky)]

I need help, My menu gui will stop working whenever another person joins the game, which is very annoying, how would I fix this? I’m not sure how.

So here’s the scripts:

The localscript in the menu gui, which is in replicated storage:

local Character = Player.Character
local Camera = workspace.CurrentCamera
local Mouse = game.Players.LocalPlayer:GetMouse()
local DefaultCFrame = workspace.CameraPart.CFrame
local Scale = 160
local InMenu = true
local UIS = game:GetService("UserInputService")

local UI = script.Parent
local KeyButton = UI:WaitForChild('KeyFrame')
local FadeFrame = UI:WaitForChild('FadeFrame')
local SpawnText = FadeFrame:WaitForChild('Spawn')
local AnyKey = KeyButton:WaitForChild('PressKeyLabel')
local tweenService = game:GetService('TweenService')
local tweenInfo = TweenInfo.new(
	0.6,
	Enum.EasingStyle.Quart,
	Enum.EasingDirection.Out,
	0,
	false,
	0
)

local tweenInfo2 = TweenInfo.new(
	0.6,
	Enum.EasingStyle.Quart,
	Enum.EasingDirection.Out,
	0,
	false,
	0
)

local newColor = Color3.fromRGB(216, 86, 86)
local oldColor = Color3.fromRGB(255, 255, 255)

local tween = tweenService:Create(FadeFrame, tweenInfo, {BackgroundTransparency = 0})
local tweenText = tweenService:Create(SpawnText, tweenInfo, {TextTransparency = 0})

local Presstween = tweenService:Create(AnyKey, tweenInfo, {TextTransparency = 0})
local PressStroketween = tweenService:Create(AnyKey, tweenInfo, {TextStrokeTransparency = 0})

local tween2 = tweenService:Create(FadeFrame, tweenInfo2, {BackgroundTransparency = 1})
local tweenText2 = tweenService:Create(SpawnText, tweenInfo2, {TextTransparency = 1})

local ColorTween = tweenService:Create(AnyKey, tweenInfo, {TextColor3 = newColor})
local ColorTween2 = tweenService:Create(AnyKey, tweenInfo, {TextColor3 = oldColor})

repeat wait()
	Camera.CameraType = Enum.CameraType.Scriptable
until Camera.CameraType == Enum.CameraType.Scriptable

local inMenuVal = Player:WaitForChild("InMenu")
local connections = {} -- this is for stopping the 'Heartbeat' function from running after character has reloaded

local function cameraFunc() -- this function should be called when player goes back into menu (if that is an option)
	if connections.playerInMenu ~= nil then -- prevent the function from running more than once
		return
	end

	connections.playerInMenu = game:GetService("RunService").Heartbeat:Connect(function()
		if not inMenuVal.Value then -- when player is not in menu
			UI.Enabled = false -- I'm going to assume 'UI' is your ScreenGui

			if connections.playerInMenu then
				connections.playerInMenu:Disconnect() -- disconnects the function
				connections.playerInMenu = nil
			end
		end

		Camera.Focus = DefaultCFrame
		local Center = Vector2.new(Camera.ViewportSize.X/2, Camera.ViewportSize.Y/2)
		local MoveVector = Vector3.new((Mouse.X-Center.X)/Scale, -(Mouse.Y-Center.Y)/Scale, 0)
		Camera.CFrame = DefaultCFrame * CFrame.Angles(math.rad(MoveVector.X), math.rad(MoveVector.Y), math.rad(MoveVector.Z))
		Camera.FieldOfView = 75
	end)
end

Camera.CFrame = workspace.CameraPart.CFrame

inMenuVal.Changed:Connect(function()
	if inMenuVal.Value then
		cameraFunc() -- run camera function when player goes into menu again
	else
		Camera.CameraSubject = Player.Character:WaitForChild("Humanoid")
	end
end)

cameraFunc()

wait(3.5)
Presstween:Play()
PressStroketween:Play()
UIS.InputBegan:Connect(function(input)
	if input.UserInputType == Enum.UserInputType.Keyboard and inMenuVal.Value then
		KeyButton.Ding:Play()
		AnyKey.Text = "PLEASE WAIT..."
		ColorTween:Play()
		wait(2.5)
		tween:Play()
		tweenText:Play()
		task.wait(3.5)
		ColorTween2:Play()
		tween2:Play()
		tweenText2:Play()
		game.Players.CharacterAutoLoads = true
		task.wait()
		game.ReplicatedStorage.LoadChar:FireServer()
		Camera.CameraType = Enum.CameraType.Custom
	end
end)

And the script in serverscriptservice:

game.Players.PlayerAdded:Connect(function(Plr)
	game.ReplicatedStorage.Spawn.Parent = Plr:WaitForChild("PlayerGui")
end)

local characterLoader = game.ReplicatedStorage:WaitForChild("LoadChar")

local function loadCharacter(client)
	if client then
		local InMenuValue = client:FindFirstChild("InMenu")

		if InMenuValue and InMenuValue.Value then

			print(client.Name .. " had no character loaded, loading their character now!")
			client:LoadCharacter()
			InMenuValue.Value = false -- this will execute once the character has loaded
		end
	end
end
characterLoader.OnServerEvent:Connect(loadCharacter)

Not sure what to do, so any ideas?

[SpiritualSonicdash (Poobus_Lashawnda)]

@inkfog

game.Players.PlayerAdded:Connect(function(Plr)
	game.ReplicatedStorage.Spawn.Parent = Plr:WaitForChild("PlayerGui")
end)

I think you forgot to clone the UI in this snippet of code, which is why it is only singleplayer. You aren’t cloning the UI and parenting the clone to the player’s PlayerGui, which is probably what you should be doing.