Title: PHP Error messages
Last modified: September 14, 2016

---

# PHP Error messages

 *  Resolved [joesmalley](https://wordpress.org/support/users/joesmalley/)
 * (@joesmalley)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/php-error-messages-2/)
 * I’m getting various error messages caused by this plugin:
 *     ```
       Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method plugin_simple_add_pages_or_posts::addPluginSubMenu() should not be called statically in /Users/website/public/wordpress/wp-includes/plugin.php on line 525
   
       Warning: Missing argument 2 for plugin_simple_add_pages_or_posts::addPluginSubMenu() in /Users/website/public/wp-content/plugins/simple-add-pages-or-posts/simple_add_pages_or_posts.php on line 47
   
       Warning: Missing argument 3 for plugin_simple_add_pages_or_posts::addPluginSubMenu() in /Users/website/public/wp-content/plugins/simple-add-pages-or-posts/simple_add_pages_or_posts.php on line 47
   
       Strict Standards: Non-static method mijnpress_plugin_framework::addPluginSubMenu() should not be called statically in /Users/website/public/wp-content/plugins/simple-add-pages-or-posts/simple_add_pages_or_posts.php on line 50
   
       Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /Users/website/public/wordpress/wp-includes/functions.php on line 3842
   
       Warning: Cannot modify header information - headers already sent by (output started at /Users/website/public/wordpress/wp-includes/plugin.php:525) in /Users/website/public/wordpress/wp-includes/option.php on line 823
   
       Warning: Cannot modify header information - headers already sent by (output started at /Users/website/public/wordpress/wp-includes/plugin.php:525) in /Users/website/public/wordpress/wp-includes/option.php on line 824
   
       Strict Standards: Non-static method mijnpress_plugin_framework::addPluginContent() should not be called statically in /Users/website/public/wp-content/plugins/simple-add-pages-or-posts/simple_add_pages_or_posts.php on line 58
       ```
   

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

 *  Plugin Author [ramon fincken](https://wordpress.org/support/users/ramon-fincken/)
 * (@ramon-fincken)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/php-error-messages-2/#post-8414073)
 * @ see [https://wordpress.org/support/topic/an-error-message-after-the-update/#post-8414070](https://wordpress.org/support/topic/an-error-message-after-the-update/#post-8414070)
 *  Plugin Author [ramon fincken](https://wordpress.org/support/users/ramon-fincken/)
 * (@ramon-fincken)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/php-error-messages-2/#post-9230632)
 * They are fixed now.

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

The topic ‘PHP Error messages’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/simple-add-pages-or-posts.svg)
 * [Simple add pages or posts](https://wordpress.org/plugins/simple-add-pages-or-posts/)
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## Tags

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

 * 2 replies
 * 2 participants
 * Last reply from: [ramon fincken](https://wordpress.org/support/users/ramon-fincken/)
 * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/php-error-messages-2/#post-9230632)
 * Status: resolved