Lua Error Nil value

[Sigoles]

error:

Lua Script Error: [CreatureScript Interface]
data/creaturescripts/scripts/onDeath/Kollos.lua:onDeath
data/creaturescripts/scripts/onDeath/Kollos.lua:5: attempt to index local 'killer' (a nil value)
stack traceback:
    [C]: in function '__index'
    data/creaturescripts/scripts/onDeath/Kollos.lua:5: in function <data/creaturescripts/scripts/onDeath/Kollos.lua:1>

script:

function onDeath(creature, corpse, killer, mostDamageKiller, unjustified, mostDamageUnjustified)
  
    local player = Player(killer)
  
    if killer:isPlayer() then
        if player:getStorageValue(2006170043) < 10 then
              
                    player:setStorageValue(2006170043, math.max(0, player:getStorageValue(2006170043)) + 1)      
              
        end       
    end
  
    return true
end

tfs 1.x

help? I dont know how reproduce

 

[Sigoles]

solved with:

local killer = nil

if not(killer) then return true end

 

[Nekiro]

 local player = Player(killer)

Wtf is this? Remove it.

add this under ondeath

if not killer then
    return true
end