Leaderboard Saving Wont Work? (Unanswered)

SecondsKey = "SecondsPlayed"

game.Players.PlayerAdded:connect(function(player)
    player:WaitForDataReady()   

    leaderstats = Instance.new("IntValue")
    leaderstats.Parent = player
    leaderstats.Name = "leaderstats"

    SecondsPlayed = Instance.new("IntValue")
    SecondsPlayed.Parent = leaderstats
    SecondsPlayed.Name = "Seconds Played"
    SecondsPlayed.Value = 0

    while wait(1) do
        SecondsPlayed.Value = SecondsPlayed.Value +1
    end 
    SecondsPlayed.Value = player:LoadNumber(SecondsKey)
end)

game.Players.PlayerRemoving:connect(function(player)
    player:SaveNumber(SecondsKey, player.leadrstats.SecondsPlayed.Value)
end)

The saving doesn't work when I rejoin, I also shutdown all servers and rejoined. It still didn't work.