DataStore is giving me an error, im lost?

The script is:

local DataStore = game:GetService("DataStoreService")
local Level1 = DataStore:GetDataStore("Levels001")
local Beli11 = DataStore:GetDataStore("Beli001")
local Exp1 = DataStore:GetDataStore("Exp001")
local ExpNeed1 = DataStore:GetDataStore("ExpNeed001")


game.Players.PlayerAdded:Connect(function(Plr)
	local stats = Instance.new("Folder", Plr)
	stats.Name = "Data"
	--- Level System
	local Levels = Instance.new("IntValue", stats)
	Levels.Name = "Levels"
	Levels.Value = 1
	local Exp = Instance.new("IntValue", stats)
	Exp.Name = "Exp"
	Exp.Value = 0
	local ExpNeed = Instance.new("IntValue", stats)
	ExpNeed.Name = "ExpNeed"
	ExpNeed.Value = 200
	--- Money System
	local Beli = Instance.new("IntValue", stats)
	Beli.Name = "Gold"
	Beli.Value = 0
	--- Stats Text

---- Datastore ----
--- Levels
   Levels.Value = Level1:GetAsync(Plr.UserId) or Levels.Value
	   Level1:SetAsync(Plr.UserId, Levels.Value)
      Levels.Changed:connect(function()
	   Level1:SetAsync(Plr.UserId, Levels.Value)
   end)
--- Gold
   Beli.Value = Beli11:GetAsync(Plr.UserId) or Beli.Value
	   Beli11:SetAsync(Plr.UserId, Beli.Value)
      Beli.Changed:connect(function()
	   Beli11:SetAsync(Plr.UserId, Beli.Value)
   end)
--- Exp
   Exp.Value = Exp1:GetAsync(Plr.UserId) or Exp.Value
	   Exp1:SetAsync(Plr.UserId, Exp.Value)
      Exp.Changed:connect(function()
	   Exp1:SetAsync(Plr.UserId, Exp.Value)
   end)
--- ExpNeed
   ExpNeed.Value = ExpNeed1:GetAsync(Plr.UserId) or ExpNeed.Value
	   ExpNeed1:SetAsync(Plr.UserId, ExpNeed.Value)
      ExpNeed.Changed:connect(function()
	   ExpNeed1:SetAsync(Plr.UserId, ExpNeed.Value)
   end)

end)

game.Players.PlayerAdded:Connect(function(plr)
	wait(.1)
	local Exp = plr.Data.Exp
	local Levels = plr.Data.Levels
	local ExpNeed = plr.Data.ExpNeed
	
	
	while wait() do
		if Exp.Value >= (100 * (Levels.Value + 1)) and Levels.Value <= 399 then
			Levels.Value = Levels.Value + 1
			
			Exp.Value = Exp.Value - ExpNeed.Value
			ExpNeed.Value = ExpNeed.Value + 100
			game.ReplicatedStorage.LevelSystem.LevelUpGui:FireClient(plr)
		end
	end
end)

game.Players.PlayerRemoving:connect(function(Player)
	Level1:SetAsync(Player.UserId, Player.Data.Levels.Value)
	Beli11:SetAsync(Player.UserId, Player.Data.Beli.Value)
	Exp1:SetAsync(Player.UserId, Player.Data.Exp.Value)
	ExpNeed1:SetAsync(Player.UserId, Player.Data.ExpNeed.Value)
	
	
	
	
	
	
	
	
	
end)

The error i i recieve is:

22:29:42.666 - Beli is not a valid member of Folder 22:29:42.667 - Stack Begin 22:29:42.667 - Script 'ServerScriptService.Data', Line 75 22:29:42.667 - Stack End

It prompts me the error as its closing out of the game.

Im confused as to what is causing this, and a hint in the right direction would be a great help.