You must set the ad_network_ads_131.txt file to be writable (check file name as well).
--BEGIN VALIDATION CODE-- D oVvIoYzA uN tRoBvQ oGiR jGlV aMkGjO uVxMvCnJcP uS eS oElW wNoKyKdN nMcC rJoR r SzXwI gJvMx RtAoM aZfTrOkCoOiJ lKoVxErRdBnFh MkZ dR sGhZkTiXkS bCeFc U qWvHmVuDi SyWgH yEhW pBnVcT nCaMtO zDjZmEfAkXmQjY bXbOj DkBwA nQhP dFdMtDnRrQeBaYkQ fUmQ oLn F nXaUhFhEyJbLlDrB zYyLgP f LoA sGnLgF dZuZeFpRtStMdPgH mV zW bNjK iF wY sShN aW hohositeX2006 --END VALIDATION CODE--
