[ACTION] Someone can fix???

[f@bio]

-- Hello friends, i made a new system of my obsidian knife, and my script dont work fine... this work only one time, i use a obsidian on a corpse and if i use one more time, made a error on console and dont work more...

-- This my script:

-- by F@bio

local dead = {3090,2866,2871,2876,3104,2881,6307,4259,4256,4262,3031,2924,2969,3086,3109,2931,5625,4268,4271,4274,4265,2945,2981,2979,4298}
local after = {3091,2867,2872,2877,3105,2882,6308,4260,4257,4263,3032,2925,2970,3087,3110,2932,5626,4269,4272,4275,4266,2946,2982,2980,4299}
local addon = {5878,5878,5878,5878,5877,5948,5925,5876,5876,5876,5925,5897,5897,5897,5896,5983,5899,5883,5883,5883,5890,5922,5922,5922,5894}

-- minotaur / mage / archer / guard
-- dragon / dragon lord / undead dragon
-- lizard templar / sentinel / snakecharmer
-- bone beast
-- winter wolf / war wolf / wolf
-- bear
-- behemoth
-- tortoise
-- kongra / merlkiin / sibang
-- chicken
-- elf / scout / arcanist
-- bat

function onUse(cid, item, frompos, item2, topos)

	if isInArray(dead, item2.itemid) == TRUE then
        for a = 1, table.getn(dead) do
            if item2.itemid == dead[a] then
                after = after[a]
                addon = addon[a]
                break
            end
        end
	
	if item.itemid == 5908 then
            rand = math.random(1,9)
               if rand == 1 then
		    doSendMagicEffect(topos,14)
		    doPlayerAddItem(cid,addon,1)
		    doSendAnimatedText(getPlayerPosition(cid), "Obaaaa!!!...", TEXTCOLOR_ORANGE)
	            doTransformItem(item2.uid,after)
		else
		    doSendMagicEffect(topos,3)
		    doSendAnimatedText(getPlayerPosition(cid), "Merda!", TEXTCOLOR_ORANGE)
		    doTransformItem(item2.uid,after)
  		end
        end

	else
		doPlayerSendCancel(cid, "Você não pode usar nesse corpo.")
	   return TRUE
 	end   
end

-- Please someone help me to fix this... after error apear, work onle me made /reload actions with gamemaster, after reload work one more time and made error on a new time...

-- This is a message error after using on console:

Lua Script Error: [Action Interface]
data/actions/scripts/obsidian_knife.lua:onUse

data/actions/scripts/obsidian_knife.lua:25: attempt to index global 'after' (a n
umber value)
stack traceback:
        data/actions/scripts/obsidian_knife.lua:25: in function <data/actions/sc
ripts/obsidian_knife.lua:20>

-- Thx for all to help me....

 

[Bagasen]

I haven't worked with arrays but should't
This: after = after[a]
Be: after = after[1]

xD