Data saves when rejoining a game for a few days, and then resets?

Player's data (in this case the number of laps completed on a race track) keeps resetting after a few days/rejoining several times. However, the script kind of works since it saves the data for a short period of time. Please help me improve the script, as i have been trying for a long time and cant figure it out.

First script is getting the laps after driving through the 2 checkpoints and the finish line:

function Entered(player)
	wait()

	if player:findFirstChild("leaderstats") ~= nil then
		player.leaderstats:remove()
	end

	local stats = Instance.new("IntValue")
	stats.Parent = player
	stats.Name = "leaderstats"

	local laps = Instance.new("IntValue")
	laps.Parent = stats
	laps.Name = "Laps"
	laps.Value = 0



	local first = Instance.new("IntValue")
	first.Name = "Cheeze"
	first.Parent = player
	first.Value = false


end


game.Players.PlayerAdded:connect(Entered)

c = game.Players:GetChildren()
for i=1, #c do
	Entered(c[i])
end 

The next script is saving the data in StarterCharacterScripts:

Save=nil;
Load=nil;
function Loadup()
	wait();
	Save=game.Workspace.Remotes:WaitForChild("Save")
	Load=game.Workspace.Remotes:WaitForChild("Load")
	if Save~=nil and Load~=nil then
		Load:FireServer();
		Save:FireServer();
	else
		Loadup()
	end
end
Loadup();

The next script is to manage the saves in ServerScriptService:

load=game.Workspace.Remotes.Load;
save=game.Workspace.Remotes.Save;
DataService=game:GetService("DataStoreService");
DataService:GetDataStore("Races")
DataStore=DataService:GetDataStore("MyDataStore");

function SaveValue(player)
	local Success, Error=pcall(function()
		DataStore:SetAsync(game.Players[player.Name].UserId.."-Laps", game.Players[player.Name].leaderstats.Laps.Value)
	end)
	if Success then
		print("Saved Data!")
	else
		print("Error Saving: "..Error);
	end
end

function LoadValue(player)
	local Success, Error=pcall(function()
		local num=DataStore:GetAsync(game.Players[player.Name].UserId.."-Laps");
		if num==nil or num==0 then
			SaveValue(player);
		else
			game.Players[player.Name].leaderstats.Laps.Value=num;
		end
	end)
	if Success then
		print("Loaded Data!")
	else
		print("Error Loading: "..Error);
	end
end
game.Players.PlayerRemoving:Connect(function(player)
	SaveValue(player)
end)
save.OnServerEvent:Connect(function(User)
	SaveValue(User);
end)
load.OnServerEvent:Connect(function(User)
	LoadValue(User);
end)