How is this erroring? (Userdata Value?)

23:26:29.906 - Workspace.Main:9: attempt to get length of global 'SMode' (a userdata value)

Can anyone help me figure out why it's giving me this error?

OBS = game.ServerStorage.OBBIES
StartingGui = game.ServerStorage.StartingGui
PlayingGui = game.ServerStorage.PlayingGui
ModeGui = game.ServerStorage.ModeSelect

function SpawnNext()
    Character.Torso.Anchored = false
    local SMode = OBS.GameMode.Easy
    local Next = math.random(1, #SMode)
    Next.Parent = game.Workspace
    Next.PrimaryPart.CFrame = game.Workspace.Start.CFrame * CFrame.new(0,0,12)
end

function UpdateGame()
    local Start = OBS:FindFirstChild("Start"):Clone()
    Start.Parent = game.Workspace
    Character.Torso.CFrame = Start.Spawn.CFrame * CFrame.new(0,5,0)
    local PGui = PlayingGui:Clone()
    PGui.Parent = player.PlayerGui
    local MGui = ModeGui:Clone()
    MGui.Parent = player.PlayerGui
    local Find = OBS.GameMode
    PMode = player.Stats.Mode
    PMode.Changed:connect(SpawnNext)
end

function Joining(Player)
    local Stats = Instance.new("BoolValue",Player)
    Stats.Name = "Stats"

    local Round = Instance.new("NumberValue",Stats)
    Round.Name = "Round"

    local Mode = Instance.new("StringValue",Stats)
    Mode.Name = "Mode"

    local Playing = Instance.new("BoolValue",Stats)
    Playing.Name = "Playing"
    Playing.Value = false   

    local SGui = StartingGui:Clone()
    SGui.Parent = Player.PlayerGui  

    Character = game.Workspace:WaitForChild(Player.Name)
    Character.Torso.Anchored = true
    player = Player

    Player.Stats.Playing.Changed:connect(UpdateGame)
end

game.Players.PlayerAdded:connect(Joining)