Problems with Slot System on OTX 3.7

[Braah]

Sup guys im having problems with this Slot System on my OTX 3.7 and i hope you guys can help me...

When server startup i got no errors, but if i try add one slot on any item i have this error:

Lua Script Error: [Main Interface]
in a timer event called from:
(Unknown scriptfile)
data/creaturescripts/scripts/slot2.lua:158: attempt to index local 'player' (a n il value)
stack traceback:
[C]: in function '__index'
data/creaturescripts/scripts/slot2.lua:158: in function 'equip'
data/creaturescripts/scripts/slot2.lua:79: in function <data/creaturescr ipts/scripts/slot2.lua:72>

I also realized the status is added to the description of the item but the bonuses are not actually added...

Here my script on creaturescripts:

local conditionMP,conditionHP,conditionML,conditionCLUB,conditionSHI,conditionDIST,conditionAMP = {},{},{},{},{},{},{}
for i=1,300 do
conditionHP = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionHP, CONDITION_PARAM_SUBID, 50)
setConditionParam(conditionHP, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionHP, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionHP, CONDITION_PARAM_STAT_MAXHITPOINTSPERCENT, 100+i)

conditionMP = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionMP, CONDITION_PARAM_SUBID, 51)
setConditionParam(conditionMP, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionMP, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionMP, CONDITION_PARAM_STAT_MAXMANAPOINTSPERCENT, 100+i)

conditionML = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionML, CONDITION_PARAM_SUBID, 52)
setConditionParam(conditionML, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionML, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionML, CONDITION_PARAM_STAT_MAGICPOINTSPERCENT, 100+i)


conditionCLUB = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionCLUB, CONDITION_PARAM_SUBID, 53)
setConditionParam(conditionCLUB, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionCLUB, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionCLUB, CONDITION_PARAM_SKILL_MELEEPERCENT, 100+i)


conditionSHI = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionSHI, CONDITION_PARAM_SUBID, 54)
setConditionParam(conditionSHI, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionSHI, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionSHI, CONDITION_PARAM_SKILL_SHIELDPERCENT, 100+i)

conditionDIST = createConditionObject(CONDITION_ATTRIBUTES)
setConditionParam(conditionDIST, CONDITION_PARAM_SUBID, 55)
setConditionParam(conditionDIST, CONDITION_PARAM_BUFF_SPELL, 1)
setConditionParam(conditionDIST, CONDITION_PARAM_TICKS, -1)
setConditionParam(conditionDIST, CONDITION_PARAM_SKILL_DISTANCEPERCENT, 100+i)
end

function getSlotType(n)
if not n then
return false
end
if n:match('%[(.+)%]') then
n = n:match('%[(.+)%]')
if n == '?' then
return 0,n
else
return n:match('(.-)%.([+-])(%d+)%%')
end
else
return false
end
end

local function loadSet(cid)
local player = Player(cid)
if not player then return false end
local t = {}
for slot=1,9 do
t[slot] = ''
local s = getPlayerSlotItem(player,slot).uid
if s ~= 0 then
t[slot] = Item(s):getAttribute(ITEM_ATTRIBUTE_DESCRIPTION)
end
end
return t
end

function chk(cid,f)
if not Player(cid) then return false end
local t = loadSet(cid)
if not t then return false end

for i=1,#f do
if f ~= t then
equip(player,nil,slot)
break
end
end
addEvent(chk,2000,cid,t)
end

function check_slot(aab, i)
if i == 5 or i == 6 then
if isWeapon(aab) or isShield(aab) or isBow(aab) then
return true
end
else
return true
end
return false
end

function equip(player,item,slot)
local t = {}
if item then
local mm,sinal,qto = getSlotType(Item(item.uid):getAttribute(ITEM_ATTRIBUTE_DESCRIPTION))
t[mm] = tonumber(qto)
end
for i=1,9 do
if i ~= slot then
if getPlayerSlotItem(player,i).itemid ~= 0 then
local aab = getPlayerSlotItem(player,i).uid
if aab and check_slot(aab,i) then
for _ in Item(aab):getAttribute(ITEM_ATTRIBUTE_DESCRIPTION):gmatch('(%[.-%])') do
local mm,sinal,qto2 = getSlotType(_)
if mm then
if not t[mm] then
t[mm] = 0
end
t[mm] = t[mm]+tonumber(qto2)
t[mm] = t[mm] > 300 and 300 or t[mm]
end
end
end
end
end
end
local fu = 0
local ca = {}
local s = ''
for sl,n in pairs(t) do
fu = fu+1
s = s..''..n..'% more of '..sl..'\n'
if sl == 'hp' then
player:addCondition(conditionHP[tonumber(n)])
ca[50] = 1
doSendTutorial(player,19)
elseif sl == 'mp' then
player:addCondition(conditionMP[tonumber(n)])
ca[51] = 1
doSendTutorial(player,19)
elseif sl == 'ml' then
player:addCondition(conditionML[tonumber(n)])
ca[52] = 1
elseif sl == 'melee' then
player:addCondition(conditionCLUB[tonumber(n)])
ca[53] = 1
elseif sl == 'shield' then
player:addCondition(conditionSHI[tonumber(n)])
ca[54] = 1
elseif sl == 'dist' then
player:addCondition(conditionDIST[tonumber(n)])
ca[55] = 1
end
end
if fu > 0 then
for i=50,55 do
if not ca then
doRemoveCondition(player:getId(),CONDITION_ATTRIBUTES,i)
end
end
else
for i=50,55 do
doRemoveCondition(player:getId(),CONDITION_ATTRIBUTES,i)
end
end
return true
end

function onLogin(player)
equip(player,nil,slot)
local cid = player:getId()
addEvent(chk,2000,cid,loadSet(cid))
return true
end

I've followed all the steps of this topic but I could not solve the problem: Action - [TFS 1.1] - Slot system

Ty guys!