Title: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback,
Last modified: November 22, 2019

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# PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback,

 *  Resolved [partiallypro](https://wordpress.org/support/users/partiallypro/)
 * (@partiallypro)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/)
 * I’m getting an error, that is appearing nearly every ~8-10 seconds in my error
   log that says the following:
 * AH01071: Got error ‘PHP message: PHP Warning: call_user_func_array() expects 
   parameter 1 to be a valid callback, function ‘sb_image_hover_effects_plugin_updater’
   not found or invalid function name in /httpdocs/wp-includes/class-wp-hook.php
   on line 286′, referer: /wp-admin/
 * Because it happens so often, it appears to randomly bring the site to a crawl.

Viewing 1 replies (of 1 total)

 *  Plugin Author [biplob018](https://wordpress.org/support/users/biplob018/)
 * (@biplob018)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/#post-12164879)
 * Will you please contact via oxilab as there have one conflicts and its will be
   solved with custom files.
 * I suggest you to contact via oxilab.orf with this forum reference as I can respond
   custom files to solved this issue.

Viewing 1 replies (of 1 total)

The topic ‘PHP Warning: call_user_func_array() expects parameter 1 to be a valid
callback,’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [biplob018](https://wordpress.org/support/users/biplob018/)
 * Last activity: [6 years, 6 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/#post-12164879)
 * Status: resolved