Title: Fatal error after updates
Last modified: August 24, 2016

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# Fatal error after updates

 *  Resolved [chopsky](https://wordpress.org/support/users/chopsky/)
 * (@chopsky)
 * [11 years ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/)
 * So I recently updated both WordPress to 4.2.2 and all the plugins/themes.
    Right
   after doing this, I’m now getting a fatal error on both the website and the /
   wp-admin
 * Fatal error: Call to undefined function wp_json_encode() in /home/website/public_html/
   wp-includes/class.wp-scripts.php on line 207
 * Any ideas what might be causing this?
 * _No bumping please._

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * (@kmessinger)
 * [11 years ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/#post-6129201)
 * Using ftp or the file manager your host provides, change the name of the plugins
   folder to plugins-old.
 *  Thread Starter [chopsky](https://wordpress.org/support/users/chopsky/)
 * (@chopsky)
 * [11 years ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/#post-6129248)
 * Didn’t fix the problem unfortunately 🙁
 *  [kmessinger](https://wordpress.org/support/users/kmessinger/)
 * (@kmessinger)
 * [11 years ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/#post-6129261)
 * Delete the wp-includes and wp-admin folders. DO NOT touch the wp-content folder.
   Download a fresh copy of WordPress, extract the folders and upload a new wp-includes
   and wp-admin to your site.
 *  Thread Starter [chopsky](https://wordpress.org/support/users/chopsky/)
 * (@chopsky)
 * [10 years, 12 months ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/#post-6129338)
 * That fixed it! Thanks 🙂

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Fatal error after updates’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 2 participants
 * Last reply from: [chopsky](https://wordpress.org/support/users/chopsky/)
 * Last activity: [10 years, 12 months ago](https://wordpress.org/support/topic/fatal-error-after-updates-1/#post-6129338)
 * Status: resolved

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