Title: PHP error
Last modified: August 22, 2016

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# PHP error

 *  [WebMan Design | Oliver Juhas](https://wordpress.org/support/users/webmandesign/)
 * (@webmandesign)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/php-error-128/)
 * Hi,
 * The plugin throws a PHP error after activating:
 *     ```
       Notice: register_uninstall_hook was called incorrectly. Only a static class method or function can be used in an uninstall hook. Please see Debugging in WordPress for more information. (This message was added in version 3.1.) in ...\wp-includes\functions.php on line 3547
       ```
   
 * Using most recent WP, debug mode on, multisite setup.
 * Regards,
 * Oliver
 * [https://wordpress.org/plugins/wp-reading-time/](https://wordpress.org/plugins/wp-reading-time/)

The topic ‘PHP error’ is closed to new replies.

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## Tags

 * [php-error](https://wordpress.org/support/topic-tag/php-error/)

 * 0 replies
 * 1 participant
 * Last reply from: [WebMan Design | Oliver Juhas](https://wordpress.org/support/users/webmandesign/)
 * Last activity: [11 years, 2 months ago](https://wordpress.org/support/topic/php-error-128/)
 * Status: not resolved