Title: Fatal error admin-header
Last modified: August 19, 2016

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# Fatal error admin-header

 *  Resolved [snapoint](https://wordpress.org/support/users/snapoint/)
 * (@snapoint)
 * [15 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-admin-header/)
 * I just updated to 3.1 and I am getting this now when I go to Network Admin
    Fatal
   error: Call to undefined function wp_menu_unfold() in …/wp-admin/admin-header.
   php on line 31 now. And it doesn’t know that I’m a super admin now. I have multisite
   activated plus buddypress. I’ve already tried switching to twenty ten and deactivating
   all my plugins. I fixed the first fatal error, but I can’t seem to fix this one.
   Thanks in advance.

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

 *  [Korex](https://wordpress.org/support/users/korex/)
 * (@korex)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-admin-header/#post-1976665)
 * Any ideas?
    Same thing here; multiblog and error after plugin installation. deleting
   plugins doesn’t help.
 * Thanks-
    Rob
 *  [Korex](https://wordpress.org/support/users/korex/)
 * (@korex)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-admin-header/#post-1976666)
 * Update:
    At first I just deleted the latest plugins, thinking that one of the
   last one killed my site – but after deleting some more, it works.
 * Thanks for the (other) hints about deleting/deactivating plugins.
 * Rob

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

The topic ‘Fatal error admin-header’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [Korex](https://wordpress.org/support/users/korex/)
 * Last activity: [15 years ago](https://wordpress.org/support/topic/fatal-error-admin-header/#post-1976666)
 * Status: resolved

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