Errors after saving a lua file (Tables with nil values)

[Theronguard]

Hi, I've encountered a problem. When I start a server I'm not getting any errors (but the print function below prints "nil")but when I save a file I'm working on with the server running I'm spammed with [ERROR] attempt to index nil value. Here's the code:
ignitionCheck = {}

//just to make sure the table had a value I put it in multiple hooks

function spawninit()
    for k,v in pairs(player.GetAll()) do
        ignitionCheck[v] = {Owner = v, Victim = v, Timerbool = false}
    end
end

function fireinitspawn(ply)
    ignitionCheck[ply] = {Owner = self, Victim = self, Timerbool = false}
end

function firepostthink(ply)
    print(ignitionCheck[ply].Victim) //This lines gives the error: attempt to index a nil value
end

hook.Add("PlayerPostThink", "postthink", firepostthink)
hook.Add("PlayerInitialSpawn", "initspawn", fireinitspawn)
hook.Add( "Initialize", "spawninit", spawninit )
Any idea why?

[LoweChaser]

if !ignitionCheck[ply] then return end

[Theronguard]

Whoopsie, missed that :P
Anyway, it works now, thanks