Server Intro! Help by SendLua (Key failed)

[Nato]

Hello Guys,
That is my Function on cl_intro.lua file

function InitMenu()
hook.Add("HUDPaint", "DrawPGBackground", mrp_drawIntroBackground)
animationStarted = false
backgroundAlpha = 255
cameraAnimation = false
HUDIntroScreenIntroScreen = nil
sliding = false
slidePos = nil
slidePosPrev = nil
slideTimer = 0
IntroMenuAlpha = 255
--Order Sensitive
shouldDrawBackground = true
CreateIntroFrame()
CreatePlayMenu()
CreateCreditsMenu()
CreateCharacterInfomationMenu()
CreateCharacterSelectionMenu()
startMenuCameraAnimations()
startMenuMusic()
end

My Error:
[ERROR] addons/intro_screen/lua/autorun/server/sv_intro.lua:5: attempt to index a string value with bad key ('SendLua' is not part of the string library)
  1. error - [C]:-1
   2. __index - lua/includes/extensions/string.lua:297
    3. unknown - addons/intro_screen/lua/autorun/server/sv_intro.lua:5
     4. unknown - lua/includes/modules/concommand.lua:54

The Editet Code:
concommand.Add("newcharacter", function(s, ply)
ply:SendLua("InitMenu()")
end)

The Old Code:
util.AddNetworkString("Thomas-StartOurGame")
util.AddNetworkString("Thomas.ClosedIntroScreen")

Thomas.Commands:Add("newcharacter", function(s, ply)
ply:SendLua("InitMenu()")
end, function() return true end)

I wish me Help why. Concommand is not so my Work!

I have used that Wiki and SendLua ist not correct

[Donkie]

The parameter order in the concommand function is function(ply, cmd, args), not function(cmd, ply) like you have.