My DataStore isn't saving no matter what, anyone have any idea?

No matter what code I use, my own, or from someone else, the data never saves. I have tried about 6 or 7 maybe 8 different datastores fro youtube videos and toolbox... I even attempted myself but it never works, I have access to studio API on I have tried in studio and the real game, but it never saves. Can anyone help?

Heres my leaderboard script that 100 percent works (change exp and kills to whatever name you want)

local DS = game:GetService("DataStoreService")
local ExpStore = DS:GetOrderedDataStore("Exp")

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("Folder", player)
	leaderstats.Name = "leaderstats"
	
	local exp = Instance.new("IntValue", leaderstats)
	exp.Name = "Exp"
	
	pcall(function()
	local ExpVal = ExpStore:GetAsync(player.UserId)
	if ExpVal then
		exp.Value = ExpVal		
	end	
  end)

game.ServerStorage.GiveExp.Event:Connect(function(amount,plr)
	if player.Name == plr.Name then
		exp.Value = exp.Value + amount
	end
  end)
end)

game.Players.PlayerRemoving:Connect(function(player)
	pcall(function()
		if player:WaitForChild("leaderstats") and player.leaderstats:WaitForChild("Exp") and player.leaderstats.Exp.Value > 0 then
			ExpStore:SetAsync(player.UserId, player.leaderstats.Exp.Value)
			
		end
	end)
end)
---------------------------------------------------------------
local Ds = game:GetService("DataStoreService")
local KillsStore = Ds:GetOrderedDataStore("Kills")

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = player:WaitForChild("leaderstats")
	leaderstats.Name = "leaderstats"
	
	local Kills = Instance.new("IntValue", leaderstats)
	Kills.Name = "Kills"
	Kills.Parent = leaderstats
	
	pcall(function()
	local KillsVal = KillsStore:GetAsync(player.UserId)
	if KillsVal then
		Kills.Value = KillsVal		
	end	
  end)

game.ServerStorage.GiveKills.Event:Connect(function(amount,plr)
	if player.Name == plr.Name then
		Kills.Value = Kills.Value + amount
	end
  end)
end)

game.Players.PlayerRemoving:Connect(function(player)
	pcall(function()
		if player:WaitForChild("leaderstats") and player.leaderstats:WaitForChild("Kills") and player.leaderstats.Kills.Value > 0 then
			KillsStore:SetAsync(player.UserId, player.leaderstats.Kills.Value)
			
		end
	end)
end)
--------------------------------------------------------
local Ds = game:GetService("DataStoreService")
local SwordBuxStore = Ds:GetOrderedDataStore("SwordBux")

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = player:WaitForChild("leaderstats")
	leaderstats.Name = "leaderstats"
	
	local SwordBux = Instance.new("IntValue", leaderstats)
	SwordBux.Name = "SwordBux"
	SwordBux.Parent = leaderstats
	
	pcall(function()
	local SwordBuxVal = SwordBuxStore:GetAsync(player.UserId)
	if SwordBuxVal then
		SwordBux.Value = SwordBuxVal		
	end	
  end)

game.ServerStorage.GiveSwordBux.Event:Connect(function(amount,plr)
	if player.Name == plr.Name then
		SwordBux.Value = SwordBux.Value + amount
	end
  end)
end)

game.Players.PlayerRemoving:Connect(function(player)
	pcall(function()
		if player:WaitForChild("leaderstats") and player.leaderstats:WaitForChild("SwordBux") and player.leaderstats.SwordBux.Value > 0 then
			SwordBuxStore:SetAsync(player.UserId, player.leaderstats.SwordBux.Value)
			
		end
	end)
end)

PUT THIS IN SERVERSCRIPTSERVICE