Why does it return nil from ordereddatastore eventhough the value exists?

In my game, I have this global leaderboard system. The Part setting the value works fine including saving and getting the data, however, always throws a nil when it comes to update() function. I tried to debug but I still can`t figure out. Any Helps will be great. Thankyou.

local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")

local GlobalWins = DataStoreService:GetOrderedDataStore("playerWins")


local Pages = GlobalWins:GetSortedAsync(false, 10)
local Data = Pages:GetCurrentPage()


local leaderScreen1 = workspace.globalLeaderBoard.screen.SurfaceGui1
local template = leaderScreen1.template
local leaderScreen2 = workspace.globalLeaderBoard.screen.SurfaceGui2
local template2 = leaderScreen1.template

local function giveFolders(player)
	print("starting winGive")
	if player then
		local dataFolder = player:WaitForChild(player.Name.."dataFolder")
		local winValue = Instance.new("NumberValue",dataFolder)
		winValue.Name = "Wins"
		winValue.Parent = dataFolder
		local winDataRetrive
		local success, result = pcall(function()
			winDataRetrive =  GlobalWins:GetAsync(player.UserId)
		end)
		if success then
			winValue.Value = tonumber(winDataRetrive) --returns correct value
			print(tonumber(winDataRetrive)) -- nvm. This also returned the correct Value.
		else
			warn(result)
		end
	end
end
local function saveData(player)
	if player then
		local dataFolder = player:FindFirstChild(player.Name.."dataFolder")
		local winValue = dataFolder:FindFirstChild("Wins")
		if winValue then
			local success, result = pcall(function()
				return GlobalWins:UpdateAsync(player.UserId,function()
					return winValue.Value
				end)
			end)
			if success then
				print("Saved Value")
				print(winValue.Value)
			else
				warn(result)
			end
		end
	end
end

game.Players.PlayerAdded:Connect(function(plr)
	print("Detected")
	if plr then
		giveFolders(plr)
	end
end)
game.Players.PlayerRemoving:Connect(function(plr)
	if plr then
		saveData(plr)
	end
end)

local function update()
	for i, v in pairs(leaderScreen1.MainFrame:GetChildren()) do
		if v:IsA("Frame") then
			v:Destroy()
		end
		for i, v in pairs(leaderScreen2.MainFrame:GetChildren()) do
			if v:IsA("Frame") then
				v:Destroy()
			end
		end
		for i,v in pairs(Data) do
			local username = Players:GetNameFromUserIdAsync(v.key)
			local value = v.Value
			local newTemplate = template:Clone()
			newTemplate.Name = username
			newTemplate.frameName.Text = tostring(username)
			newTemplate.frameValue.Text = tostring(value)
			newTemplate.Visible = true
			newTemplate.Parent = leaderScreen1.MainFrame
		end
		for i,v in pairs(Data) do
			local username = Players:GetNameFromUserIdAsync(v.key)
			local value = tonumber(v.Value)
			print(tostring(value))
			local newTemplate = template2:Clone()
			newTemplate.Name = username
			newTemplate.frameName.Text = tostring(username) 
			newTemplate.frameValue.Text = tostring(value)
			newTemplate.Visible = true
			newTemplate.Parent = leaderScreen2.MainFrame
		end
		wait(60*3)
	end
end

update()

spawn(function()
	while true do
		update()
	end		
end)

By the way, the actual script where it updates the point is in different place(in same game) and that also works totally fine.