My frame won't appear on my Leaderboard?

When i test out my game, everything works except that the frame won't appear, is there something wrong?

local DataStoreService = game:GetService("DataStoreService")
local ExpLeaderboard = DataStoreService:GetOrderedDataStore("ExpLeaderboard")

local function updateLeaderboard()
	local success, errorMessage = pcall(function()
		local Data = ExpLeaderboard:GetSortedAsync(false, 5)
		local ExpPage = Data:GetCurrentPage()
		for Rank, data in ipairs(ExpPage) do
			local userName = game.Players:GetNameFromUserIdAsync(tonumber(data.key))
			local Name = userName
			local Exp = data.Value
			local isOnLeaderboard = false
			for i, v in pairs(game.Workspace.Maps.HillsMap.Leaderboard.GlobalLeaderboard.LeaderboardGUI.Holder:GetChildren()) do
				if v.Player.Text == Name then
					isOnLeaderboard = true
					break
				end
			end
			
			if Exp and isOnLeaderboard == false then
				local newLbFrame = game.ReplicatedStorage:WaitForChild("LeaderboardFrame"):Clone()
				newLbFrame.Player.Text = Name
				newLbFrame.Exp.Text = Exp
				newLbFrame.Rank.Text = "#"..Rank
				newLbFrame.Position = UDim2.new(0, 0, newLbFrame.Position.Y.Scale + (.08 * #game.Workspace.Maps.HillsMap.Leaderboard.GlobalLeaderboard.LeaderboardGUI.Holder:GetChildren()), 0)
				newLbFrame.Parent = game.Workspace.Maps.HillsMap.Leaderboard.GlobalLeaderboard.LeaderboardGUI.Holder
			end
		end
	end)
	
	if not success then
		print(errorMessage)
	end
end

while true do
	
	for _, player in pairs(game.Players:GetPlayers()) do
		ExpLeaderboard:SetAsync(player.UserId, player.leaderstats.Exp.Value)
	end
	
	for _, frame in pairs(game.Workspace.Maps.HillsMap.Leaderboard.GlobalLeaderboard.LeaderboardGUI.Holder:GetChildren()) do
		frame:Destroy()
	end
	
	updateLeaderboard()
	print("Updated")
	
	wait(10)
end