How do I make this work with filtering enabled?

local level = game:GetService("DataStoreService"):GetDataStore("Levels")
local xp = game:GetService("DataStoreService"):GetDataStore("XP")
local axp = game:GetService("DataStoreService"):GetDataStore("AXP") -- amount of XP Needed

function savedata(dataname, playerid, value)
	game:GetService("DataStoreService"):GetDataStore(dataname):SetAsync(playerid, value)	
end



game.Players.PlayerAdded:connect(function(player)
	local leader = Instance.new("Folder")
	leader.Name = "leaderstats"
	leader.Parent = player
	local levelz = Instance.new("IntValue")
	levelz.Value = level:GetAsync(tostring(player.userId)) or 1
	levelz.Name = "Level"
	levelz.Parent = player:WaitForChild("leaderstats")
	local xpz = Instance.new("NumberValue")
	xpz.Value = xp:GetAsync(tostring(player.userId))
	xpz.Name = "XP"
	xpz.Parent = player
	local xpn = Instance.new("IntValue")
	xpn.Value = axp:GetAsync(tostring(player.userId)) or 700
	xpn.Name = "XpNeeded"
	xpn.Parent = player
	
	xpz.Changed:connect(function()
		if player:WaitForChild("XP").Value >= player:WaitForChild("XpNeeded").Value then
			levelz.Value = levelz.Value+1
			xpn.Value = xpn.Value+700
			savedata("Levels",player.userId,levelz.Value)
			savedata("XP",player.userId,xpz.Value)
			savedata("AXP",player.userId,xpn.Value)
		else
			savedata("Levels",player.userId,levelz.Value)
			savedata("XP",player.userId,xpz.Value)
			savedata("AXP",player.userId,xpn.Value)			
		end
	end)
end)

game.Players.PlayerRemoving:connect(function(player)
	savedata("Levels",player.userId,player.leaderstats.Level.Value)
    savedata("EXP",player.userId.player.EXP.Value)
    savedata("AXP",player.userId.player.XpNeeded.Value)
end)