I have the exact same problem.. I have over 100 domains on this server, and all of them except 1 have stopped updating awstats since Nov 6th, 2004. The only one who did not stop on Nov 6th has a day of zero's, at least once a week. I know this site gets about 2000 hits a day, so a zero day is not possible.
And as of Dec 6th, the only one who still did get awstats updates (*sometimes*) stopped working completly as well.
I checked under tweak settings to double check things. I noticed that I had delete logs after statistics are ran checked. I unchecked this about 48 hours ago, (I thought maybe the script which calls the stats programs was deleting the logs before awstats had it's chance). That WAS NOT the case though, AWSTATS just doesn't run on ANY of the 100 domain/accounts on my server.
Any help woud be greatly appreciated.
Vince
***NOTE*** I can manually update stats by clicking Update Now, I don't want to have to do this stuff manually though. Also I really DO want logs deleted each day, there are several high traffic sites which get 1000+ visitors a day, and even one who gets about 4000+ hits a day.