Title: PHP Warning in debug.log
Last modified: December 8, 2017

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# PHP Warning in debug.log

 *  Resolved [massimod](https://wordpress.org/support/users/massimod/)
 * (@massimod)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/php-warning-in-debug-log-4/)
 * After 4.8.4 update (and after enabling debug.log for a while) i see this error
   2-3 times in the logs:
 * [08-Dec-2017 11:34:20 UTC] PHP Warning: include(/home/website/wp-content/advanced-
   cache.php): failed to open stream: No such file or directory in /home/website/
   wp-settings.php on line 84
 * Not sure what it means and if it is a result of the update or existed before,
   The file (advanced-cache.php and path) exist allright. I had to remove Comet 
   Cache along with the settings, and reinstall it as new plugin to fix it.
 * Any ideas ?
 * Thanks

Viewing 1 replies (of 1 total)

 *  [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * (@raamdev)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/php-warning-in-debug-log-4/#post-9763480)
 * [@massimod](https://wordpress.org/support/users/massimod/) That’s really weird.
   I haven’t heard any other reports of that issue and it sounds a lot to me like
   a permissions-related thing on your server.
 * It sounds like the permissions of `advanced-cache.php` somehow changed after 
   the WordPress update, which resulted in WordPress unable to open the file. Reinstalling
   Comet Cache would have deleted and recreated the `advanced-cache.php` file, which
   probably reset the permissions to something that allowed WordPress to open it.

Viewing 1 replies (of 1 total)

The topic ‘PHP Warning in debug.log’ is closed to new replies.

 * ![](https://ps.w.org/comet-cache/assets/icon-256x256.png?rev=1348602)
 * [Comet Cache](https://wordpress.org/plugins/comet-cache/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * Last activity: [8 years, 5 months ago](https://wordpress.org/support/topic/php-warning-in-debug-log-4/#post-9763480)
 * Status: resolved