Title: Fata error on automatic update
Last modified: August 24, 2016

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# Fata error on automatic update

 *  [nigelkent](https://wordpress.org/support/users/nigelkent/)
 * (@nigelkent)
 * [11 years ago](https://wordpress.org/support/topic/fata-error-on-automatic-update/)
 * Went for the automatic update to 4.2.2 and it failed.
 * I am now getting the message:
 * Fatal error: Call to undefined function wp_json_encode() in /home/cream01/public_html/
   wp-admin/includes/misc.php on line 668
    if I attempt to log in to to the dashboard
   and a nasty little line on the base of every page which says: Fatal error: Call
   to undefined function get_avatar_url() in /home/cream01/public_html/wp-includes/
   pluggable.php on line 2221.
 * Any thoughts?

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

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [11 years ago](https://wordpress.org/support/topic/fata-error-on-automatic-update/#post-6126433)
 * try **MANUAL** updating. Download a fresh copy of the WordPress .zip file to 
   your computer, unzip it, and use that to copy up all files and folders EXCEPT
   the wp-config.php file and the /wp-content/ directory. You may need to delete
   the old copies of files & folder on your server before uploading the new ones.
   Read the [Manual Update ](http://codex.wordpress.org/Updating_WordPress#Manual_Update)
   directions first.
    – running the upgrade manually via wp-admin/upgrade.php – **
   If you haven’t already done, always backup everything (including your database)
   before doing any actions, just in case something really goes wrong.**
 * In case you are upgrading much older version, then try reviewing this codex first:
   [https://codex.wordpress.org/Upgrading_WordPress_-_Extended_Instructions](https://codex.wordpress.org/Upgrading_WordPress_-_Extended_Instructions)
 *  Thread Starter [nigelkent](https://wordpress.org/support/users/nigelkent/)
 * (@nigelkent)
 * [11 years ago](https://wordpress.org/support/topic/fata-error-on-automatic-update/#post-6126477)
 * Thanks for that Tara. Very speedy.
 * Sadly, since I can’t get at the WP dashboard for the nice easy export option,
   backing up everything is quite a chore. However, it would appear to be the only
   way. Ho Hum!
 * Cautionary note to self is not to allow auto-updates but go in and export back
   up files first. It all felt rather too easy!
 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [11 years ago](https://wordpress.org/support/topic/fata-error-on-automatic-update/#post-6126481)
 * here are some useful codex on backups:
    [http://codex.wordpress.org/WordPress_Backups](http://codex.wordpress.org/WordPress_Backups)
   [http://codex.wordpress.org/Backing_Up_Your_Database](http://codex.wordpress.org/Backing_Up_Your_Database)
   [http://codex.wordpress.org/Restoring_Your_Database_From_Backup](http://codex.wordpress.org/Restoring_Your_Database_From_Backup)

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

The topic ‘Fata error on automatic update’ is closed to new replies.

## Tags

 * [automatic update](https://wordpress.org/support/topic-tag/automatic-update/)
 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [t-p](https://wordpress.org/support/users/t-p/)
 * Last activity: [11 years ago](https://wordpress.org/support/topic/fata-error-on-automatic-update/#post-6126481)
 * Status: not resolved

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