I have this data store script that i think should work but it doesn't?. please help

I know the first part works but its the part where it saves when you click the gui that doesn't.

local DataStore = game:GetService("DataStoreService")
local DS1 = DataStore:GetDataStore("ExampleDataStore")



game.Players.PlayerAdded:connect(function(player)
	local leader = Instance.new("Folder",player)
	leader.Name = "leaderstats"
	local Bricks = Instance.new("IntValue",leader)
	Bricks.Name = "bricks"
	Bricks.Value = DS1:GetAsync(player.UserId) or 0
	DS1:SetAsync(player.UserId, Bricks.Value)
	local SaveGUI = game.StarterGui.SaveGUI.SaveGUIFrame.SaveGUIButton


game.Players.PlayerRemoving:connect(function(player)
	print("Saveing Data")
	DS1:SetAsync(player.UserId, player.leaderstats.Bricks.Value)
	print(player.Name.."'s Data of"..player.leaderstats.Bricks.Value.." "..player.leaderstats.Bricks.Name.."has been saved!")

end)

this is what doesn't work

SaveGUI.MouseButton1Click:connect(function()
	DS1:SetAsync(player.UserId, player.leaderstats.Bricks.Value)
	print("Saved!")
end)

end)