Title: Error Message
Last modified: August 19, 2016

---

# Error Message

 *  [Zappa365](https://wordpress.org/support/users/zappa365/)
 * (@zappa365)
 * [15 years, 2 months ago](https://wordpress.org/support/topic/error-message-81/)
 * Hi,
 * I built a suite for some guys a while back and they have got some error now when
   they run updates… they have this message..
 * Fatal error: Call to undefined function is_network_admin() in /home/allgonep/
   public_html/wp-admin/admin-header.php on line 16
 * Ay idea?

Viewing 1 replies (of 1 total)

 *  [Curtiss Grymala](https://wordpress.org/support/users/cgrymala/)
 * (@cgrymala)
 * [15 years, 2 months ago](https://wordpress.org/support/topic/error-message-81/#post-2025244)
 * [http://wordpress.org/support/topic/php-fatal-error-call-to-undefined-function-is_network_admin?replies=3](http://wordpress.org/support/topic/php-fatal-error-call-to-undefined-function-is_network_admin?replies=3)

Viewing 1 replies (of 1 total)

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

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [Curtiss Grymala](https://wordpress.org/support/users/cgrymala/)
 * Last activity: [15 years, 2 months ago](https://wordpress.org/support/topic/error-message-81/#post-2025244)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics