Saving Player Stats Not Updating?

In my game, when you purchase a weapon, the stats are supposed to save using updateasync, though they are not. I am sending arguments from a local script to a server script using a remote event. The contents of my code will be posted below.

Local Script:

button.MouseButton1Down:Connect(function()
	local weaponBackpack = script.Parent.Parent.Parent.ScrollingFrame:GetChildren()
	local weaponStorage = myWeaps:GetChildren()
	
	local thePrice = script.Parent.Price.Value
	local theWeapon = script.Parent.WeapNum.Value
	
	for i = 1, #weaponStorage do 
		if theWeapon == i then --If theWeapon is at the i value, then that must be the weapon they buy
			local weaponStorage = myWeaps:GetChildren() --Gets all the WeapOwned values and stores in table
			if player.leaderstats.Gold.Value >= thePrice and not weaponStorage[i].Value then --Checks if player doesn't have the weapon, and has enougn gold
				player.leaderstats.Gold.Value = player.leaderstats.Gold.Value - thePrice --Subract the gold
				
				local newval = player.leaderstats.Gold.Value
				
				remoteEvent:FireServer(player ,player.UserId, thePrice, newval) --Call SaveGold Script
				
				weaponStorage[i].Value = true --Set weapon to true.
			end
		end
	end
end)

Server Script:

remoteEvent.OnServerEvent:Connect(function(player, id, thePrice, newVal)
	print(id)
	print(thePrice)
	print(player.leaderstats.Gold.Value)
	
	local success, errormessage = pcall(function()
		dataStore:UpdateAsync(id..'-gold', newVal)
	end)
	if success then
		print('Player gold saved.')
	else
		print('Error when saving player gold.')
		warn(errormessage)
	end
end)