My Data store script not working in my simulator game?

Hi i need help on DataStore Saving. I watched Alvin Blox's video on it and it dosent work for me, no errors are in output, so I dont know what the problem is. I think its a Synax error but I cant find the error PLEASE HELP P.S I put my datastore in my leaderstats script

Script:

local serverStorage = game:GetService("ServerStorage")
local DataStore = game:GetService("DataStoreService"):GetDataStore("DataStore3")
game.Players.PlayerAdded:Connect(function(player)
	

	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player
	
	local strength = Instance.new("NumberValue")
	strength.Name = "Strength"
	strength.Parent = leaderstats
	
	local rebirths =  Instance.new("IntValue") 
	rebirths.Name = "Rebirths"
	rebirths.Parent = leaderstats
	
	local coins = Instance.new("IntValue")
	coins.Name = "Coins"
	coins.Parent = leaderstats
	
	
	local dataFolder = Instance.new("Folder")
	dataFolder.Name = player.Name
	dataFolder.Parent = serverStorage.RemoteData
	
	local debounce = Instance.new("BoolValue")
	debounce.Name = "Debounce"
	debounce.Parent = dataFolder
	
	local strengthData, rebirthsData

	local success,errormessage = pcall(function()
		
		strengthData = DataStore:GetAsync("strength-",player.UserId)
		rebirthsData = DataStore:GetAsync("rebirths-",player.Userid)
			
	end)
	if success then
		if strengthData then
			strength.Value = strengthData
			rebirths.Value = rebirthsData
		end
	end
end)

game.Players.PlayerRemoving:Connect(function(player)
	local success, errormessage = pcall(function()
		DataStore:GetAysnc("strength-"..player.UserId,player.leaderstats.Strength.Value)
		DataStore:GetAsync("rebirths-".. player.UserId.player.leaderstats.Rebirths.Value)
	end)
	
	
	
	
	
	
end)