Title: Fatal Error
Last modified: August 22, 2016

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# Fatal Error

 *  [HermanG](https://wordpress.org/support/users/hermang/)
 * (@hermang)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/)
 * Hi I read that I should open a new threat for this issue that i am struggling
   with. When I try to login to edit my website I get this message:
    Call to undefined
   function wp_json_encode() in
 * Can you please assist me on how I can resolve this issue.
    Kind regards

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [ftschumann](https://wordpress.org/support/users/ftschumann/)
 * (@ftschumann)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617398)
 * Strange. Are all files definitely uploaded to your server?
 * First thing I would try is make that that the plugins aren’t causing an issue.
 * Try deactivating the plugins one by one and see if eventually the problem is 
   resolved.
 * If you can’t access the plugins, just go to wp-content/plugins/ via FTP and add“
   _past” to the end of each folder name one by one and check is the problem disappears.
 * If that does nothing, you might want to make sure that all files being called
   upon are actually present. So it might be worth a try re-uploading (replacing)
   all WordPress files via FTP. Backup all files before you do this. And make sure
   not replace the wp-content/plugins and wp-content/uploads folder. Also, make 
   sure not to replace wp-config.php from the home folder.
 * Best,
 * Florian
 *  Thread Starter [HermanG](https://wordpress.org/support/users/hermang/)
 * (@hermang)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617400)
 * Hi there, yea this error appeared after updating wordpress.
    But and I see there
   are a few people strugling with this issue.
 *  [ftschumann](https://wordpress.org/support/users/ftschumann/)
 * (@ftschumann)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617401)
 * My first thought would be that it’s a plugin compatibility issue as a result 
   of the WordPress update. Do you use WooCommerce? Try the deactivating the plugins.
 *  Thread Starter [HermanG](https://wordpress.org/support/users/hermang/)
 * (@hermang)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617444)
 * Nope not the plugins, still struggling to access the back-end of my site.
    Can’t
   upload anything, any suggestions?
 *  [ftschumann](https://wordpress.org/support/users/ftschumann/)
 * (@ftschumann)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617467)
 * I’m not a php programmer so I wouldn’t be able to do much else. Maybe see if 
   there is a .htaccess file in a folder that shouldn’t have it, and check all folder
   permissions. Other than that, I’m out of ideas.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Fatal Error’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 5 replies
 * 2 participants
 * Last reply from: [ftschumann](https://wordpress.org/support/users/ftschumann/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-1464/#post-5617467)
 * Status: not resolved

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