Title: Fatal Error
Last modified: January 21, 2020

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# Fatal Error

 *  Resolved [claine78](https://wordpress.org/support/users/claine78/)
 * (@claine78)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fetal-error-10/)
 * I have followed methods using the FTP Manager and the PHPMyAdmin to manual disable
   my plugins and I still cant login to my dashboard because I am getting the following
   message:
 * Fatal error: Uncaught Error: Call to undefined function nocache_headers() in /
   home/peekaboo1949/public_html/cusopmillcottage.co.uk/wp-admin/admin.php:33 Stack
   trace: #0 /home/peekaboo1949/public_html/cusopmillcottage.co.uk/wp-admin/index.
   php(10): require_once() #1 {main} thrown in /home/peekaboo1949/public_html/cusopmillcottage.
   co.uk/wp-admin/admin.php on line 33
 * I think this message is showing me there is something wrong with the admin.php?
   Is there anything else I can try?
 * Many Thanks, Charlotte
    -  This topic was modified 6 years, 3 months ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).
      Reason: Moved to Fixing WordPress, this is not an Everything else WordPress
      topic
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffetal-error-10%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  [Olga Gleckler](https://wordpress.org/support/users/oglekler/)
 * (@oglekler)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12349960)
 * It looks like your WordPress installation is missing some files. Try to restore
   it from a backup, if you can, or update WordPress manually (see how to do this
   first).
 *  Thread Starter [claine78](https://wordpress.org/support/users/claine78/)
 * (@claine78)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12354659)
 * Hi oglekler
 * I tried the backup and I still get the error message and another message in red
   stating that the backup failed.
 * I’m not sure how to update WordPress manually. I can research this but just to
   be sure have you got an easy to follow tutorial link please.
 * Many thanks
 * Charlotte
 *  [Olga Gleckler](https://wordpress.org/support/users/oglekler/)
 * (@oglekler)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12356012)
 * Hi, Charlotte!
 * This is the instruction: [https://wordpress.org/support/article/upgrading-wordpress-extended-instructions/](https://wordpress.org/support/article/upgrading-wordpress-extended-instructions/)
   
   The main point – to have a backup (including database) before doing anything 
   to be able to undo this.
 * But, you can try to restore files like this:
    Find, what WP version you have 
   in this file: “/wp-includes/version.php” Choose your version here: [https://wordpress.org/download/releases/](https://wordpress.org/download/releases/)
   unpack and replace files. This will not contain files with custom settings like.
   htaccess and wp-config.php (only wp-config-sample.php) so you can just replace
   all of them.
 * If it’ll work, then it’s better to make a fresh backup before trying to do anything
   else.
 * It’s unclear how problems were started – you tried to update, changed some settings
   or site has been badly hacked. If it’s happened like “itself”, the last one is
   probable and it’ll complicate the whole thing.
 * Olga
    -  This reply was modified 6 years, 3 months ago by [Olga Gleckler](https://wordpress.org/support/users/oglekler/).
 *  Thread Starter [claine78](https://wordpress.org/support/users/claine78/)
 * (@claine78)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12357726)
 * Thanks Olga
 * I will attempt this and hopefully come back to you with it being resolved.
 * Many Thanks
 * Charlotte
 *  Thread Starter [claine78](https://wordpress.org/support/users/claine78/)
 * (@claine78)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12442156)
 * Problem solved. Thanks for your help

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

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 5 replies
 * 2 participants
 * Last reply from: [claine78](https://wordpress.org/support/users/claine78/)
 * Last activity: [6 years, 2 months ago](https://wordpress.org/support/topic/fetal-error-10/#post-12442156)
 * Status: resolved

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