i have issue that access and error log are written in same file ! , the configuration in virtualhosts.conf as the following :

 <VirtualHost *:80>
  ServerName  ************
  ServerAdmin support@************8
  DocumentRoot /var/www/html/*********.com
  ErrorLog /var/log/httpd/********/********.com_error_log
  CustomLog /var/log/httpd/********/********.com_access_log combined
  <Directory /var/www/html/***********.com>
    Options -Indexes FollowSymLinks
    AllowOverride All
  </Directory>
</VirtualHost>

as you see from the configuration each access and error logs should be save separately , but both logs are written in *.com_access_log , i have double check all permission , group and owner ... can't find anything wrong

previous error in log file :

[Thu Sep 19 14:15:02 2013] [error] [client 192.168.10.54] client denied by server configuration: /var/www/html/**********/show_has_offers.php

i have tried to generate same error , i can find the hit in access log only as the following :

192.168.10.75 - - [24/Oct/2013:08:11:14 +0000] "GET /show_has_offers.php HTTP/1.1" 404 1586 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0" 0 17332

and nothing in error log !!

Please advice ...