Title: Fatal Error
Last modified: August 17, 2017

---

# Fatal Error

 *  Resolved [Onisiforos](https://wordpress.org/support/users/onisforos/)
 * (@onisforos)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-2640/)
 *     ```
       2017/08/17 10:02:54 [error] 26176#0: *214062 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Call to undefined function stripslashes_deep() in /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/class-request.php:41
       Stack trace:
       #0 /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/class-container.php(48): MC4WP_Request::create_from_globals()
       #1 /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/functions.php(30): MC4WP_Container->get('request')
       #2 /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/forms/class-form-manager.php(149): mc4wp('request')
       #3 /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/forms/class-form-manager.php(90): MC4WP_Form_Manager->get_request()
       #4 /var/www/example.com/wp-content/plugins/mailchimp-for-wp/includes/forms/class-form-manager.php(59): MC4WP_Form_Manager->init_form_listener()
       #5 /var/www/example.com" while reading response header from upstream, client: 31.153.80.159, server: example.com, request: "GET /wp-admin/admin.php?page=w3tc_dashboard&w3tc_flush_current_page&_wpnonce=a688f2d69d HTTP/1.1", upstream: "fastcgi://127.0.0.1:9070", host: "example.com"
       ```
   
    -  This topic was modified 8 years, 10 months ago by [Onisiforos](https://wordpress.org/support/users/onisforos/).
    -  This topic was modified 8 years, 10 months ago by [Onisiforos](https://wordpress.org/support/users/onisforos/).

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-2640/#post-9420373)
 * Hi,
 * What versions are you using for: Apache / Nginx, PHP, WordPress and MailChimp
   for WordPress?
 * Stripslachesdeep is a build in WordPress function: [https://codex.wordpress.org/Function_Reference/stripslashes_deep](https://codex.wordpress.org/Function_Reference/stripslashes_deep)
 * I notice the error is generated by w3tc_dashboard ?
 * Thanks for letting us know,
 *  Thread Starter [Onisiforos](https://wordpress.org/support/users/onisforos/)
 * (@onisforos)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-2640/#post-9420488)
 * Hi [@lapzor](https://wordpress.org/support/users/lapzor/),
 * I commented out that function in order to fix the 500 errors the administrators
   panel (the whole panel was down)
 * nginx 1.10.3
    PHP 7.0.22 Wordpress 4.8.1 Mailchimp for WordPress 4.1.6
 * Regards,
 * O
 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/fatal-error-2640/#post-9422812)
 * Hi,
 * As I mentioned, stripslashes_deep is a build in WordPress function that really
   should be available for you. Danny won’t be back in office till somewhere next
   week. In the mean time I wonder if you could test with all other plugins turned
   off, to see if that solves the issue. If so, you can turn them on one by one (
   or in 50% groups) to narrow down the conflicting plugin.
 * Also try and switch to default theme to see if that sovlves it.
 * This build in WordPress function should be in wp-includes/formatting.php . Can
   you find it there? If not, you may need to repair/reinstall your WordPress.
 * Hope that helps!
 * Kind regards,
 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-2640/#post-9440384)
 * Since there have been no replies for awhile I will now mark this ticket as “resolved”.
   
   If you are still experiencing this issue or you have a similar problem, please
   create a NEW ticket.
 * Thank you!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Fatal Error’ is closed to new replies.

 * ![](https://ps.w.org/mailchimp-for-wp/assets/icon-256x256.png?rev=1224577)
 * [MC4WP: Mailchimp for WordPress](https://wordpress.org/plugins/mailchimp-for-wp/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/mailchimp-for-wp/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/mailchimp-for-wp/)
 * [Active Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/mailchimp-for-wp/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [Lap](https://wordpress.org/support/users/lapzor/)
 * Last activity: [8 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-2640/#post-9440384)
 * Status: resolved