Title: Error warnings
Last modified: February 1, 2022

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# Error warnings

 *  [tkmosia](https://wordpress.org/support/users/tkmosia/)
 * (@tkmosia)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/error-warnings-3/)
 * Hi, I have some warning messages on my wordpress website after apdating my wordpress
   to the latest version, it only becomes ok when I restore my backup before the
   update. Here are the messages; please assist
 *     ```
       Warning: call_user_func_array() expects parameter 1 to be a valid callback, function '_disable_block_editor_for_navigation_post_type' not found or invalid function name in /home/customer/www/ikahengacademy.co.za/public_html/wp-includes/class-wp-hook.php on line 307
   
       Warning: Cannot modify header information - headers already sent by (output started at /home/customer/www/ikahengacademy.co.za/public_html/wp-includes/class-wp-hook.php:307) in /home/customer/www/ikahengacademy.co.za/public_html/wp-content/plugins/sg-cachepress/core/Supercacher/Supercacher_Helper.php on line 86
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-warnings-3%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  [Farook Kholwadia](https://wordpress.org/support/users/judgerookie/)
 * (@judgerookie)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/error-warnings-3/#post-15314814)
 * this may help: [https://wordpress.org/support/topic/_disable_block_editor_for_navigation_post_type/](https://wordpress.org/support/topic/_disable_block_editor_for_navigation_post_type/)
 *  Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/)
 * (@jdembowski)
 * Forum Moderator and Brute Squad
 * [4 years, 3 months ago](https://wordpress.org/support/topic/error-warnings-3/#post-15315993)
 * [@tkmosia](https://wordpress.org/support/users/tkmosia/) Stop making duplicate
   topics. I have archived your 2 other identical topics.

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

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 3 participants
 * Last reply from: [Jan Dembowski](https://wordpress.org/support/users/jdembowski/)
 * Last activity: [4 years, 3 months ago](https://wordpress.org/support/topic/error-warnings-3/#post-15315993)
 * Status: not resolved

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