Title: Admin Core Issue
Last modified: October 14, 2025
---
# Admin Core Issue
* [DragonApps](https://wordpress.org/support/users/zothecula/)
* (@zothecula)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/)
* When I go to I get a blank page, when I go to zothnet.com/wp-admin I get the
following error.
* ```wp-block-code
Fatal error: Uncaught Error: Call to undefined function nocache_headers() in /home/zothnet1/public_html/wp-admin/admin.php:37 Stack trace: #0 /home/zothnet1/public_html/wp-admin/index.php(10): require_once() #1 {main} thrown in /home/zothnet1/public_html/wp-admin/admin.php on line 37So since I cannot get to the admin section I tried to run disable all plugins in cli I get this error message:[zothnet1@ny-s3 public_html]$ wp plugin deactivate --allWarning: Undefined array key "HTTP_HOST" in /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1354) : eval()'d code on line 73Fatal error: Uncaught Error: Call to undefined function get_locale() in /home/zothnet1/public_html/wp-admin/includes/admin.php:16Stack trace: 0 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1404): require() 1 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1313): WP_CLI\Runner->load_wordpress() 2 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php(28): WP_CLI\Runner->start() 3 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/bootstrap.php(84): WP_CLI\Bootstrap\LaunchRunner->process() 4 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/wp-cli.php(35): WP_CLI\bootstrap() 5 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/wp-cli/php/boot-fs.php(17): require_once('/usr/local/cpan…') 6 /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/wpt-wp-cli.php(31): require_once('/usr/local/cpan…') 7 /usr/local/bin/wp(4): require_once('/usr/local/cpan…') 8 {main}thrown in /home/zothnet1/public_html/wp-admin/includes/admin.php on line 16
```
* The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fadmin-core-issue%2F%3Foutput_format%3Dmd&locale=en_US)
to see the link]_
Viewing 6 replies - 1 through 6 (of 6 total)
* Moderator [threadi](https://wordpress.org/support/users/threadi/)
* (@threadi)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681286)
* It appears that important core files are missing or incomplete. I would recommend
performing a manual update: [https://wordpress.org/documentation/article/updating-wordpress/#manual-update](https://wordpress.org/documentation/article/updating-wordpress/#manual-update)
* Thread Starter [DragonApps](https://wordpress.org/support/users/zothecula/)
* (@zothecula)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681299)
* Ok, I tried that but even with a whole new admin and includes I am still getting
the same error when I go to /wp-admin
* Fatal error: Uncaught Error: Call to undefined function nocache_headers() in /
home/zothnet1/public_html/wp-admin/admin.php:37 Stack trace: #0 /home/zothnet1/
public_html/wp-admin/index.php(10): require_once() #1 {main} thrown in /home/
zothnet1/public_html/wp-admin/admin.php on line 37
* [bvbaked](https://wordpress.org/support/users/bvbaked/)
* (@bvbaked)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681304)
* That appears to be the same error, so perhaps you did not update it correctly?
* If you have CLI access, try using it to [update your core files](https://developer.wordpress.org/cli/commands/core/update/)
by following instructions here. That might be an easier way than moving files
as that can sometimes not quite work as expected.
* Thread Starter [DragonApps](https://wordpress.org/support/users/zothecula/)
* (@zothecula)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681306)
* Welllllllllllllllll, that was quite confusing hehe…
* ```
[zothnet1@ny-s3 public_html]$ wp update wordpress
Warning: No WordPress installation found. If the command 'update wordpress' is in a plugin or theme, pass --path=path/to/wordpress.
Error: 'update' is not a registered wp command. See 'wp help' for available commands.
[zothnet1@ny-s3 public_html]$ ls
ads dragomemlimit.png license.txt power-off-button.ico test wp-comments-post.php wp-load.php
alma8cwp.png dragophpmem.png megasm.jpg readme.html vise.png wp-config.php wp-login.php
bootstrap error_log objstorage.png robots.txt vserv.jpg wp-config.php.bu wp-mail.php
cgi-bin index.html OneTouchReveal.pdf sfc-errors.png vzw wp-config-sample.php wp-settings.php
chatsupport index.html_ packages.png shrink.png vzw-cloud-support.html wp-content wp-signup.php
contaboos.png index.html.bu photos sitemap.xml wp-activate.php wp-cron.php wp-trackback.php
cookie.txt index.php phpinfo.php.bu smarty wp-admin wp-includes xmlrpc.php
download.png laravel8 php.ini symfony24 wp-blog-header.php wp-links-opml.php
[zothnet1@ny-s3 public_html]$ wp core update
Error: This does not seem to be a WordPress installation.
The used path is: /home/zothnet1/public_html/
Pass --path=path/to/wordpress or run wp core download.
[zothnet1@ny-s3 public_html]$ wp core download
Error: WordPress files seem to already be present here.
```
* Thread Starter [DragonApps](https://wordpress.org/support/users/zothecula/)
* (@zothecula)
* [7 months, 4 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681311)
* [zothnet1@ny-s3 public_html]$ wp core update /home/zothnet1/public_html/wordpress6.8.3-
no-wpcontent.zip
Error: This does not seem to be a WordPress installation. The
used path is: /home/zothnet1/public_html/ Pass –path=`path/to/wordpress` or run`
wp core download`.
* Moderator [threadi](https://wordpress.org/support/users/threadi/)
* (@threadi)
* [7 months, 3 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681556)
* A quick way to restore it would be to use a backup. If you don’t have one yourself,
contact your host’s support team.
* Otherwise, I see that there are other files in the directory besides WordPress
that don’t belong there. According to [Web Archive](https://web.archive.org/),
however, WordPress was definitely running there. If WP CLI no longer recognizes
it, there is probably something wrong with some of the files. Take a look at
wp-config.php. It should contain the basic configuration, such as the database
connection details. If not, this could be the reason for the malfunctions.
* A manual update, as described in the link above, should actually solve the problem.
Check carefully whether you have uploaded the files to the correct hosting –
it’s easy to get confused. If necessary, also check the file modification data
for wp-admin and wp-includes via SSH (if you already have it).
Viewing 6 replies - 1 through 6 (of 6 total)
The topic ‘Admin Core Issue’ is closed to new replies.
## Tags
* [admin error](https://wordpress.org/support/topic-tag/admin-error/)
* In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
* 6 replies
* 3 participants
* Last reply from: [threadi](https://wordpress.org/support/users/threadi/)
* Last activity: [7 months, 3 weeks ago](https://wordpress.org/support/topic/admin-core-issue/#post-18681556)
* Status: not resolved
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