Help for a new Addon Programmer

[Lagencie]

Hello Guys,

i feel kind of stupid ... i dont even get the "Writing_your_first_addon" to work ...

LempsAddon = {}
LempsAddon.name = "LempsAddon"
LempsAddon.version = "1.0"
local LempsAddon.inCombat = false

local function LempsAddon.CombatStateChanged(combatState)
	self.inCombat = combatState
	if self.inCombat then
		d("fight")
	else
		d("no fight")
	end
end

local function LempsAddon:Initialize(event, addon)
	self.inCombat = IsUnitInCombat("player")
	EVENT_MANAGER:RegisterForEvent("LempsAddon", EVENT_PLAYER_COMBAT_STATE, LempsAddon.CombatStateChanged)
end

local function LempsAddon.OnAddOnLoaded(event, addonName)
  if addonName == LempsAddon.name then
    LempsAddon:Initialize()
  end
end

EVENT_MANAGER:RegisterForEvent("LempsAddon", EVENT_ADD_ON_LOADED, LempsAddon.OnAddOnLoaded)

This is my code but it just doesnt work ... I dont even get where this code would be able to not work ... I see no Text output to the chat (debug) at all