Title: Bug – wordpress menu error
Last modified: June 8, 2020

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# Bug – wordpress menu error

 *  Resolved [Adrian Stepan](https://wordpress.org/support/users/stepanadrianro/)
 * (@stepanadrianro)
 * [6 years ago](https://wordpress.org/support/topic/bug-wordpress-menu-error/)
 * Hi
 * While the plugin is activated the wp-admin/nav-menus.php returns the following
   error:
 * ”There has been a critical error on your website. Please check your site admin
   email inbox for instructions.”
 * and the email received is
 * ”An error of type E_ERROR was caused in line 92 of the file /home/xxx/xxx.ro/
   wp-content/plugins/hd-quiz/includes/post-type.php. Error message: Cannot redeclare
   hdq_add_warning() (previously declared in /home/xxx/xxx.ro/wp-content/plugins/
   hd-quiz/includes/post-type.php:95)”
 * Can you fix this?
 * Thanks
    Adrian

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

 *  Plugin Author [Harmonic Design](https://wordpress.org/support/users/harmonic_design/)
 * (@harmonic_design)
 * [6 years ago](https://wordpress.org/support/topic/bug-wordpress-menu-error/#post-12954212)
 * Hi stepanadrianro,
    this is an interesting one!
 * The error means that your site already has a function called `hdq_add_warning`
   running, but the chances of that are insanely small. All HD Quiz functions are
   prefixed with `hdq_` for this very reason – to reduce the chances that your site
   theme or any other additional plugins already use a function with the same name.
 * Because of this, one of two things are happening. 1) another plugin you are using
   is also using the `hdq_` prefix (which it shouldn’t – I’ve had it reserved for
   over 5 years), or 2) something is broken on your site and for whatever reason,
   the nav page specifically is loading HD Quiz twice (for example, if your site
   runs `admin_enqueue_scripts` twice.
 * **WHAT TO DO.**
 * The first thing to do is determine if the issue is another plugin, or if there
   is something else broken on your site. We can check by first deactivating ALL
   plugins except HD Quiz and see if the problem persists.
 * If the problem is still there then we know at the very least that it is not another
   plugin interfering. If the problem goes away, then you can reactive each plugin
   again one by one until we figure out the one causing the issue. Let me know which
   it is and I can reach out to them to request they change the function name.
 * We can also do the same with the theme by switching the theme to the default 
   theme to see if that makes a difference.
 * **HOW TO FIX NOW**
    Regardless if we determine that the issue is caused by another
   plugin or if the issue is some other breaking bug with your site, you can make
   the following edit to “fix” this issue now.
 * Using the plugin editor, navigate to `./includes/post-type.php` and delete the
   lines `90` (function called `hdq_add_warning_to_quiz_tax`) to `137`. This will
   completely remove the function.
 * The editor can be accessed by going to `plugins` -> `plugin editor`, then selecting
   HD Quiz from the top right dropdown.
 * Lastly, as a super last resort if for whatever reasons you are not comfortable
   making any of the steps above, you can always temporarily deactivate HD Quiz 
   before using the Menus page, then reactivate once done. Obviously not the best
   solution, but at least it’s easy!
 *  Thread Starter [Adrian Stepan](https://wordpress.org/support/users/stepanadrianro/)
 * (@stepanadrianro)
 * [6 years ago](https://wordpress.org/support/topic/bug-wordpress-menu-error/#post-12955812)
 * Thank you very much for the detailed solution. I used your last tip since that
   is the easiest one 🙂 I appreciate it!

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

The topic ‘Bug – wordpress menu error’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [Adrian Stepan](https://wordpress.org/support/users/stepanadrianro/)
 * Last activity: [6 years ago](https://wordpress.org/support/topic/bug-wordpress-menu-error/#post-12955812)
 * Status: resolved