Title: PHP 8.1 error
Last modified: February 24, 2026

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# PHP 8.1 error

 *  [jparsons106](https://wordpress.org/support/users/jparsons106/)
 * (@jparsons106)
 * [1 month, 3 weeks ago](https://wordpress.org/support/topic/php-8-1-error-12/)
 * Hi, the latest version of the plugin is breaking the page editor for all plugins.
   
   See error, [error] 128637#128637: *582967 FastCGI sent in stderr: “PHP message:
   PHP Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback)
   must be a valid callback, class rtWLSSCMeta does not have a method “wwbels_sc_after_title”

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

 *  [Peter Leenders](https://wordpress.org/support/users/peterleenders/)
 * (@peterleenders)
 * [1 month, 3 weeks ago](https://wordpress.org/support/topic/php-8-1-error-12/#post-18832467)
 * Temporarily restored version 1.5.0.
 * That’s the solution for me for now.
    -  This reply was modified 1 month, 3 weeks ago by [Peter Leenders](https://wordpress.org/support/users/peterleenders/).
 *  Plugin Support [Monjur Hasan Milton](https://wordpress.org/support/users/milton75/)
 * (@milton75)
 * [1 month, 3 weeks ago](https://wordpress.org/support/topic/php-8-1-error-12/#post-18833028)
 * Hi,
 * We apologize for the inconvenience you experienced.
 * We have released a new version of the plugin. Please update to the latest version
   and check again. We believe the issue should now be resolved.
 * If you still face any problems, kindly let us know. We’ll be happy to assist 
   you further.
 * Thank you.

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

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 * 3 replies
 * 3 participants
 * Last reply from: [Monjur Hasan Milton](https://wordpress.org/support/users/milton75/)
 * Last activity: [1 month, 3 weeks ago](https://wordpress.org/support/topic/php-8-1-error-12/#post-18833028)
 * Status: not resolved