Timer.Create() Issues

[RedXVIII]

[B]Init.lua[/B]

function RespawnPoisonZombie(Index)
	PoisonZombie[Index] = ents.Create("npc_poisonzombie")
	PoisonZombie[Index]:SetPos(PoisonZombieSpawn[Index]:GetPos())
	PoisonZombie[Index]:Spawn()
end

function RespawnFastZombie(Index)
	FastZombie[Index] = ents.Create("npc_fastzombie")
	FastZombie[Index]:SetPos(FastZombieSpawn[Index]:GetPos())
	FastZombie[Index]:Spawn()
end

function RespawnZombie(Index)
	Zombie[Index] = ents.Create("npc_zombie")
	Zombie[Index]:SetPos(ZombieSpawn[Index]:GetPos())
	Zombie[Index]:Spawn()
end

function NPCDied(Victim, Killer, Weapon)

	if Victim:GetClass() == "npc_zombie" then
		for a = 1, #Zombie, 1 do
			if Zombie[a]:Health() <= 0 then
				timer.Create("Wait1", 10, 1, RespawnZombie, a)
			end
		end
	end
	
	if Victim:GetClass() == "npc_fastzombie" then
		for b = 1, #FastZombie, 1 do
			if FastZombie[b]:Health() <= 0 then
				timer.Create("Wait2", 10, 1, RespawnFastZombie, b)
			end
		end
	end
	
	if Victim:GetClass() == "npc_poisonzombie" then
		for c = 1, #PoisonZombie, 1 do
			if PoisonZombie[c]:Health() <= 0  then
				timer.Create("Wait3", 10, 1, RespawnPoisonZombie, c)
			end
		end
	end
	
end

hook.Add("OnNPCKilled", "Test", NPCDied)

[B]Error[/B]

[ERROR] gamemodes/solitude/gamemode/init.lua:69: table index is nil
  1. unknown - gamemodes/solitude/gamemode/init.lua:69

Timer Failed! [Wait2][@gamemodes/solitude/gamemode/init.lua (line 93)]

Trying to pass on the index to the function, but is nil.

[NinjaS]

You need to set them a table first before you can index the.

[Crazy Quebec]

Please, PLEASE, stop declaring all of your functions and variables as global. Also since you're not showing us the whole code we have to make way too many assumptions here. I could assume you properly defined PoisonZombie, FastZombie and Zombie but I'll have to ask. Did you define them before you started indexing them?

edit : About the timers, you're calling them wrong. You can't pass arguments anymore.