Title: Updated WordPress – Fatal error – help!
Last modified: October 25, 2016

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# Updated WordPress – Fatal error – help!

 *  [photoclare](https://wordpress.org/support/users/photoclare/)
 * (@photoclare)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/updated-wordpress-fatal-error-help/)
 * I just tried to update my version of WordPress and now my site has gone down 
   with the following error:
 * Fatal error: Call to undefined function wp_convert_hr_to_bytes() in /home/photoclare/
   public_html/wp-includes/default-constants.php on line 32
 * I can’t login to my site, I can’t do anything! Please help!

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [bruno112](https://wordpress.org/support/users/bruno112/)
 * (@bruno112)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/updated-wordpress-fatal-error-help/#post-8354817)
 * [https://www.youtube.com/watch?v=CB0BfoDyVN4](https://www.youtube.com/watch?v=CB0BfoDyVN4)
   try
 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/updated-wordpress-fatal-error-help/#post-8354829)
 * – Try **MANUALLY** re-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 wp-admin and wp-includes folders and files on your server before uploading
   the new ones. Please read the [Manual Update](http://codex.wordpress.org/Updating_WordPress#Manual_Update)
   directions first.
    – **Backup: If you haven’t already done, always backup everything(
   including your database) before doing any actions, just in case something really
   goes wrong. You can never have enough backups! **

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Updated WordPress – Fatal error – help!’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 3 participants
 * Last reply from: [t-p](https://wordpress.org/support/users/t-p/)
 * Last activity: [9 years, 8 months ago](https://wordpress.org/support/topic/updated-wordpress-fatal-error-help/#post-8354829)
 * Status: not resolved

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