rescue NBT-tag garbage from ME-network

//https://mcskill.net/mcforum/index.php?/topic/119757-opencomputers-%D0%B8%D0%B7%D0%B2%D0%BB%D0%B5%D1%87%D0%B5%D0%BD%D0%B8%D0%B5-%D1%81%D1%83%D0%BC%D0%BE%D0%BA-%D0%B8-%D0%BF%D1%80%D0%BE%D1%87%D0%B5%D0%B3%D0%BE-%D1%85%D0%BB%D0%B0%D0%BC%D0%B0-%D1%81-%D0%BA%D1%83%D1%87%D0%B5%D0%B9-nbt-%D1%82%D0%B5%D0%B3%D0%BE%D0%B2-%D0%B8%D0%B7-%D0%BC%D1%8D/


local component = require("component")
local db = component.database
local exportbus = component.me_exportbus
local controller = component.me_controller
local args = {...}
local item = args[1]


local function getDbSize()
  if not pcall(function() db.get(10) end) then
    return 9
  elseif not pcall(function() db.get(26) end) then
    return 25
  else
    return 81
  end
end


local function noneItemID()
  if item == nil then
    print("Enter the object ID as an argument. For example: rescue minecraft:axe")
      return true
  end
end


local function mainExport()
  for i = 1, getDbSize() do
    db.clear(i)
  end
end


local function setExportConfig()
  controller.store({name = item}, db.addres, 1, 1)
  for i=1,6 do
    if exportbus.setExportConfiguration(i, 1, db.address, 1) then
      break
    end
  end
end

checkItem = controller.getItemsInNetwork({name = item}).n

if checkItem == 0 then
  print("You have 0 items. Programm stops. Cooldown is approx. 1 min.")
else
  print("You have", checkItem, "items. Be patient... Export will start soon...")
  for i = 1, checkItem do
    if noneItemID() then break end
    setExportConfig()
    mainExport()
  end
  print("Check the storage.")
end