Title: Error: array_key_exists
Last modified: June 22, 2021

---

# Error: array_key_exists

 *  [renews](https://wordpress.org/support/users/renews/)
 * (@renews)
 * [4 years, 11 months ago](https://wordpress.org/support/topic/error-array_key_exists-2/)
 * Just installed the plugin when I went to configure it the settings page give 
   me this error at the **Glossary page labels** options. Can anyone help?
 *     ```
       Fatal error: Uncaught Error: array_key_exists(): Argument #2 ($array) must be of type array, null given
       in /var/app/current/wp-content/plugins/bluet-keywords-tooltip-generator/settings-glossary.php on line 72
   
       Call stack:
   
       tltpy_glossary_text_display()
       wp-admin/includes/template.php:1737
       do_settings_fields()
       wp-admin/includes/template.php:1695
       do_settings_sections()
       wp-content/plugins/bluet-keywords-tooltip-generator/settings-page.php:522
       bluet_kw_render_settings_page()
       wp-includes/class-wp-hook.php:292
       WP_Hook::apply_filters()
       wp-includes/class-wp-hook.php:316
       WP_Hook::do_action()
       wp-includes/plugin.php:484
       do_action()
       wp-admin/admin.php:259
       require_once()
       wp-admin/edit.php:10
       ```
   

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   rev=1277221)
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## Tags

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

 * 0 replies
 * 1 participant
 * Last reply from: [renews](https://wordpress.org/support/users/renews/)
 * Last activity: [4 years, 11 months ago](https://wordpress.org/support/topic/error-array_key_exists-2/)
 * Status: not resolved