What is wrong with leaderstat datastore?

Hi! I have a datastore that should save both the wins and coins of the leaderstat but it is not working and there are no errors. It doesn't print anything out or warn me. Can someone please help me understand this. Thank you

local DataStoreService = game:GetService("DataStoreService")
local DataStore = DataStoreService:GetDataStore("DataStore")


local function onPlayerAdded(plr)
	local leaderstats = Instance.new("Folder",plr)
	leaderstats.Name = "leaderstats"
	
	local wins = Instance.new("IntValue",leaderstats)
	wins.Name = "Wins"
	
	local coins = Instance.new("IntValue",leaderstats)
	coins.Name = "Coins"
	
	local playerUserId = "Player_".. plr.UserId
	
	
	local data
	local success, errormessage = pcall(function()
		data = DataStore:GetAsync(playerUserId)
	end)
	
	if success then
		if data then
			wins.Value = data.wins
			coins.Value = data.coins
			end
	end

end

local function onPlayerRemoving(plr)
	local playerUserId = "Player_".. plr.UserId
	
	local data = {
		wins = plr.leaderstats.Wins.Value;
		coins = plr.leaderstats.Coins.Value;
	}
	
	local success,errormessage = pcall(function()
		DataStore:SetAsync(playerUserId, data)
	end)
	
	if success then
		print("Data successfully saved!")
	else
		print("There was an error")
		warn(errormessage)
	end
end



game.Players.PlayerAdded:Connect(onPlayerAdded)
game.Players.PlayerRemoving:Connect(onPlayerRemoving)