Why doesnt my datastore save my datas?

So, I made this script I learned from a youtuber. and it worked!! and then I tried adding another data. it failed :(. and it wont work. can someone please help me find my issue? I've been struggling for much to long XD

--DataStore Script	
	local player = NewPlayer
	local playerUserId = "Player "..player.UserId
	
	local datar
	local data
	local success, errormessage = pcall(function()
		data = myDataStore:GetAsync(playerUserId)
		datar = myDataStore:GetAsync(playerUserId)
	end)
	
	if success then
		Coins.Value = data
		RunSpeed.Value = datar
		print("Data Loaded")
	end
end)
game.Players.PlayerRemoving:Connect(function(player)
	
	local playerUserId = "Player "..player.UserId
	
	local data =  player.leaderstats.Pennys.Value
	local datar = player.leaderstats.RunSpeed.Value
	
	local success, errormessage = pcall(function()
		myDataStore:SetAsync(playerUserId, data)
		myDataStoreRun:SetAsync(playerUserId, datar)
	end)
	
	if success then
		print("Data Successfully Saved!")
		print("RunSpeed Successfully Saved!")
	else
		print("Something Went Wrong :(")
		warn(errormessage)
	end
end)

And for some reason, theres no errors! it doesnt say "Something Went Wrong :(" it doesnt say "Data Successfully Saved!" it doesnt have any output It will load but theres nothing to load, cause you cant save

When the last player in the server leaves PlayerRemoving doesnt fire. To save the data of the last player in the server you should use game:BindToClose() This will run the function before the server shuts down and save the data of the last player.

Keep in mind; BindToClose() will only keep the server from shutting down until the function finishes running or until 30 seconds have passed from the moment it started so make sure your function doesn't take that long to execute or you will have dataloss.

BindToClose API

EDIT: I just noticed another problem with your code, you overwrite the data youre trying to save, you should store all the data you want to save in 1 array and save that array to the datastore:

Arrays tutorial