In the config file /etc/webalizer.conf, the OutputDir hasn't been changed to reflect the FS changes in RedHat 7.0 : OutputDir /home/httpd/html/usage It should be set to /var/www/html/usage (which is a directory created and owned by the package, that is correct).
It's fixed in webalizer-1.30_04-7.
*** Bug 22268 has been marked as a duplicate of this bug. ***