Title: [Plugin: W3-Total-Cache
Last modified: August 19, 2016

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# [Plugin: W3-Total-Cache

 *  [dtemple](https://wordpress.org/support/users/dtemple/)
 * (@dtemple)
 * [15 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-3/)
 * I am getting this in an error log
 * PHP Warning: require_once(/home/antiquec/public_html/wp-includes/wp-db.php) [
   [function.require-once](https://wordpress.org/support/topic/plugin-w3-total-cache-3/function.require-once?output_format=md)]:
   failed to open stream: No such file or directory in /home/antiquec/public_html/
   wp-content/plugins/w3-total-cache/lib/W3/Db.php on line 8
 * PHP Fatal error: require_once() [[function.require](https://wordpress.org/support/topic/plugin-w3-total-cache-3/function.require?output_format=md)]:
   Failed opening required ‘/home/antiquec/public_html/wp-includes/wp-db.php’ (include_path
   =’.:/usr/lib/php:/usr/local/lib/php’) in /home/antiquec/public_html/wp-content/
   plugins/w3-total-cache/lib/W3/Db.php on line 8
 * Please let me know what this means and how to correct it
 * Thanks,
    Diane

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [15 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-3/#post-1915363)
 * It appears files are missing from your WordPress installation. Back up your site
   and database and then try to run the update/upgrade operation again.
 *  Thread Starter [dtemple](https://wordpress.org/support/users/dtemple/)
 * (@dtemple)
 * [15 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-3/#post-1915433)
 * PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/collapsi/
   public_html/wp-content/plugins/w3-total-cache/lib/W3/ObjectCache.php on line 
   158
 * I am also getting this error with w3-total-cache
 * Please let me know what is causing this and how to correct it
 * Thanks,
    Diane
 *  [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-3/#post-1915737)
 * Hmm, it appears your server is under-powered. It’s taking more than 30 seconds
   for some operations to complete. Disable object and database caching.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘[Plugin: W3-Total-Cache’ is closed to new replies.

 * 3 replies
 * 2 participants
 * Last reply from: [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * Last activity: [14 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-3/#post-1915737)
 * Status: not resolved

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