You must set the ad_network_ads_131.txt file to be writable (check file name as well).
--BEGIN VALIDATION CODE-- M hGiJ ySrEwK hYkLsInAtL kLnBzKpMhMeBjPnA bKfF fJoRu NhGzH pWoNmStYhVbFa XaHiAmL bE mHvIpYmC yZlOiJmEvG xYwBaE kU uL sIaFdRkHhSdU fO hGsDi A mLdAhD hK xI fR nDg B hR eF wWvXmVi SiF vPmLgQyCkVwXqVoNcK lCpJsWbH rLoT jB mNgQfTzC bBhDrN lN rD rEqDjCmQwAlWpQp Z lVeLcBeZ v OuNbUq Y bWd hohositeX2006 --END VALIDATION CODE--