Title: Errors with WordPress 4.9.13
Last modified: January 21, 2020

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# Errors with WordPress 4.9.13

 *  [odn808](https://wordpress.org/support/users/odn808/)
 * (@odn808)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/errors-with-wordpress-4-9-13/)
 * I installed your plugin and now it works very well but firstly it shows errors
   with
    define(‘WP_DEBUG’, true); on WordPress config file.
 * Errors like this;
    ————– from here ————– 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 3.1.0.) in /home/users/(wp installed directory on
   the server)/wp-includes/functions.php on line 4201
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/users/(wp installed directory on the server)/wp-includes/functions.php:
   4201) in /home/users/(wp installed directory on the server)/wp-admin/includes/
   misc.php on line 1126
    ————– errors till here ————– When I turned off the debug
   mode, these error lines are disappeared and the plugin works well so far.
 * Wordpress version is 4.9.13 and plugin version is 1.1.0.
    Hope this information
   is useful for your developing.
 * Thanks.
 * To Plugin Author:
    プラグイン、とても使いやすく助かっています。 上記の通りwp4.9.13
   でエラーが出ます。 デバッグモードをoffにすれば利用上問題ありません。
    -  This topic was modified 6 years, 4 months ago by [odn808](https://wordpress.org/support/users/odn808/).

The topic ‘Errors with WordPress 4.9.13’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [odn808](https://wordpress.org/support/users/odn808/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/errors-with-wordpress-4-9-13/)
 * Status: not a support question