Lua Help Point system

[nefinoo]

Lua Script Error: [Scripts Interface]
C:\Users\Nefi\OneDrive\Escritorio\forgottenserver-master\data\scripts\CUSTOMS NEFI\MonstersPoints.lua:callback
...rver-master\data\scripts\CUSTOMS NEFI\MonstersPoints.lua:16: attempt to compare number with nil
stack traceback:
        ...rver-master\data\scripts\CUSTOMS NEFI\MonstersPoints.lua:16: in function <...rver-master\data\scripts\CUSTOMS NEFI\MonstersPoints.lua:3>

local CusMons = CreatureEvent("CusMons")

function CusMons.onKill(player, target)
   
local config = { -- Use missionStorage to link the monsters to each mission. It is set up this way so multiple missions can have the same monsters.
    [1] = {name = "Rat", amount = 1, missionStorage = 43000},
    [2] = {name = "Cave Rat", amount = 2, missionStorage = 43000},
    [3] = {name = "Troll", amount = 3, missionStorage = 43000}
}
        if target:isPlayer() or target:getMaster() then
            return true
        end
       
        for i = 1, #config do
            if target:getName() == config[i].name then
                if storage >= 0 and storage < maximo then
                    player:setStorageValue(config[i].missionStorage, player:getStorageValue(config[i].missionStorage) + config[i].amount)
                elseif storage == maximo then
                    player:sendTextMessage(MESSAGE_STATUS_WARNING, "Your monsters points are full, waste on the !store.")
                end
            end
        end
    return true
end

CusMons:register()

 

[Xikini]

if storage >= 0 and storage < maximo then

You haven't declared storage or maximo

example

local storage = player:setStorageValue(config[i].missionStorage)

 

[nefinoo]

Thanks!