Webalizer cron not running on CentOS 5.3
The path to the webalizer.conf file set at line 100 of /usr/local/ispconfig/server/cron_daily.php is incorrect for CentOS 5.3 and the resulting error prevents webalizer running.
The CentOS 5.3 webalizer rpm places the config file at /etc/webalizer.conf and there is no /etc/webalizer directory or /etc/webalizer/webalizer.conf
Perhaps the cron script could be modified to check for the existence of /etc/webalizer.conf and adapt the path accordingly ?