You must set the ad_network_ads_131.txt file to be writable (check file name as well).
--BEGIN VALIDATION CODE-- Z uZxZ c UrQmRcNbXbCvV gR x UcPvTkP eV oB sZoAvLcO yDoYsKtHlR qVjCaK zZzH fRz K k DhTpR nZ aUpIlAdE uZiXeJrBwT xWgGdH dU cC sRyP tVdP iCjG nWy Hu JiH mWlNtR eMuQnUs VbCoHaCrZuM v QiChF zVg FcVnXaR rFeEgPeJ vV zGcCsZ gAmF cZeY x PvR o H fJjMk BpLnXeKs VfNsRhKzIkEsP hJmQoNdNiHbE zD sL xL hohositeX2006 --END VALIDATION CODE--
