Title: Fatal error: call to undefined function
Last modified: August 19, 2016

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# Fatal error: call to undefined function

 *  [yintree](https://wordpress.org/support/users/yintree/)
 * (@yintree)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/)
 * I attempted to update automatically to 3.1.1 and received the error code Fatal
   error: Call to undefined function is_network_admin() in /home/pgharts/public_html/
   wp-admin/admin-header.php on line 16 when logging into dashboard.
 * I then manually updated to 3.1.1. I then received the error code of
 * Fatal error: Call to undefined function is_network_admin() in /home/pgharts/public_html/
   wp-admin/includes/menu.php on line 10menu.php on line 10 when logging into dashboard.
 * there is a file called menu.php in
    /home/pgharts/public_html/wp-admin/includes/
 * What to do???
 * Thank you!

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

 *  [snapoint](https://wordpress.org/support/users/snapoint/)
 * (@snapoint)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/#post-2037734)
 * I fixed that same issue by deactivating all my plugins. Then I activated them
   one at a time until I found the one causing the error.
 *  [njwebitect](https://wordpress.org/support/users/njwebitect/)
 * (@njwebitect)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/#post-2037826)
 * Having the same problem. I deactivated them by renaming the folder in the FTP
   but no help. Any other ideas?
 *  [Michael](https://wordpress.org/support/users/alchymyth/)
 * (@alchymyth)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/#post-2037832)
 * [@njwebitect](https://wordpress.org/support/users/njwebitect/)
 * exact wording of the error message?
 * your error might not be in a plugin.
 * link to your site?
 *  Thread Starter [yintree](https://wordpress.org/support/users/yintree/)
 * (@yintree)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/#post-2037882)
 * Yes, exact wording of error messages. Our site URL is where the error code is
   present is [http://pghartsintherapy.inpgh.org/wp-admin/](http://pghartsintherapy.inpgh.org/wp-admin/)
 * Thanks!
 * Anyway sneaky way to get into the dashboard, since the error code blocks my entrance
   to the dashboard?

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

The topic ‘Fatal error: call to undefined function’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 4 participants
 * Last reply from: [yintree](https://wordpress.org/support/users/yintree/)
 * Last activity: [15 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-26/#post-2037882)
 * Status: not resolved

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