title: Error files being generated constantly at apache server
body: <p>I am getting the following kind of errors very fast and I am unable to open up my plesk control panel. My disk space is becoming full at very constant speed. Now I am unable to open up my ftp also. The disk space is rapidly being occupied with error log files.</p>
  
  <p>These are the error messages I am getting. Can anyone please look into this..</p>
  
  <pre><code>[root@host353218 ~]# grep -Hr 94.233.235.239 /var/www/vhosts/playtoongames.com/statistics/logs/error_log | grep 09:12
  /var/www/vhosts/playtoongames.com/statistics/logs/error_log:[Mon Jun 06 09:12:22 2011] [error] [client 94.233.235.239] PHP Notice:  Use of undefined constant LOGIN_TITLE - assumed 'LOGIN_TITLE' in /var/www/vhosts/playtoongames.com/httpdocs/lang/en.php on line 4, referer: http://www.playtoongames.com/categories/5/
  /var/www/vhosts/playtoongames.com/statistics/logs/error_log:[Mon Jun 06 09:12:22 2011] [error] [client 94.233.235.239]
  </code></pre>
  
  <p>Regards.</p>