Title: call_user_func_array
Last modified: November 9, 2021

---

# call_user_func_array

 *  Resolved [affan2015](https://wordpress.org/support/users/affan2015/)
 * (@affan2015)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/)
 * Hi
    Can you help me, there is a bug report like this
 * PHP message: PHP Warning: call_user_func_array() expects parameter 1 to be a 
   valid callback, class ‘RWMB_Input_Field’ does not have a method ‘esc_meta’ in
   website.com/wp-content/plugins/meta-box/inc/field.php on line 576″ while reading
   upstream, client: 127.0.0.1, server: website.com, request: “GET /wp-admin/post-
   new.php HTTP/2.0”
 * Thank you.`

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

 *  Plugin Support [Neo WhiteRabbit](https://wordpress.org/support/users/longnguyen89/)
 * (@longnguyen89)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/#post-15055509)
 * Hi,
 * Can you please let me know which Meta Box extensions that activated on your site?
   You need to update all extensions to the latest version to resolve this issue.
 *  Thread Starter [affan2015](https://wordpress.org/support/users/affan2015/)
 * (@affan2015)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/#post-15056892)
 * Hi,
    Thank you for the reply. i’m not using any extension plugin, i’m just using
   the core Meta Box plugin, that problem only occurs on version 5.4.8. when I downgrade
   it to version 5.4.7, then the problem goes away
 *  Plugin Support [Neo WhiteRabbit](https://wordpress.org/support/users/longnguyen89/)
 * (@longnguyen89)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/#post-15062080)
 * Hi,
 * Please try to deactivate all plugins except Meta Box, switch to the standard 
   theme of WordPress (Twenty TwentyOne) and update Meta Box to the new version 
   then re-check this issue.
 * Let me know how it goes.
 *  Thread Starter [affan2015](https://wordpress.org/support/users/affan2015/)
 * (@affan2015)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/#post-15063846)
 * Apparently the problem is with the theme, and now it has been solved.
    Thanks
   very much.

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

The topic ‘call_user_func_array’ is closed to new replies.

 * ![](https://ps.w.org/meta-box/assets/icon-128x128.png?rev=1100915)
 * [Meta Box](https://wordpress.org/plugins/meta-box/)
 * [Support Threads](https://wordpress.org/support/plugin/meta-box/)
 * [Active Topics](https://wordpress.org/support/plugin/meta-box/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/meta-box/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/meta-box/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [affan2015](https://wordpress.org/support/users/affan2015/)
 * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/call_user_func_array-9/#post-15063846)
 * Status: resolved