Title: WordPress upgrade failed
Last modified: August 24, 2016

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# WordPress upgrade failed

 *  Resolved [buildblog](https://wordpress.org/support/users/buildblog/)
 * (@buildblog)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/wordpress-upgrade-failed/)
 * I tried to upgrade WordPress today and it failed. My hosting company said:
 * “I have thoroughly investigated the case and the problem appears to be produced
   by the zencache plugin that you are using for your WordPress. That plugin appears
   to have cached some old information for the database of the application from 
   prior to having it updated and it now breaks the update process for the database.
 * I am afraid that even with the plugin disabled the application still tries to
   fetch the cached information from it and this is why it fails. I suggest that
   you consult with the developers of the plugin as they should be able to resolve
   the problem for you.”
 * I’ve deleted the plugin and any cache folders/files.
 * Can you h elp?
 * My site is: [http://tendingmygarden.com/](http://tendingmygarden.com/)
 * Thanks.
 * [https://wordpress.org/plugins/zencache/](https://wordpress.org/plugins/zencache/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * (@raamdev)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/wordpress-upgrade-failed/#post-6058883)
 * [@buildblog](https://wordpress.org/support/users/buildblog/) ZenCache does not
   do any database caching, so what the hosting company is accusing ZenCache of 
   doing simply isn’t possible.
 * We have tens of thousands of users who are running ZenCache and who had no problem
   upgrading to the latest version of WordPress.

Viewing 1 replies (of 1 total)

The topic ‘WordPress upgrade failed’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/zencache_3c4c6b.svg)
 * [ZenCache](https://wordpress.org/plugins/zencache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/zencache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/zencache/)
 * [Active Topics](https://wordpress.org/support/plugin/zencache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/zencache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/zencache/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * Last activity: [11 years, 1 month ago](https://wordpress.org/support/topic/wordpress-upgrade-failed/#post-6058883)
 * Status: resolved