Title: Fatal error: Call to undefined function Last modified: August 31, 2016 --- # Fatal error: Call to undefined function * Resolved [salvador21](https://wordpress.org/support/users/salvador21/) * (@salvador21) * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/) * Version 3.2.3 * Does anyone know what tis means? * Thanks * Fatal error: Call to undefined function get_current_screen() in /home/pete/public_html/ xxxxxxx/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions.php on line 467 * [https://wordpress.org/plugins/wordpress-seo/](https://wordpress.org/plugins/wordpress-seo/) Viewing 11 replies - 1 through 11 (of 11 total) * [8bui](https://wordpress.org/support/users/8bui/) * (@8bui) * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310432) * I had the same error because I use another plugin that renames the wp-admin login url. I made a ‘quick fix’ by adding this line: `require_once(ABSPATH . 'wp-admin/ includes/screen.php');` in the file: “plugins/wordpress-seo/inc/wpseo-non-ajax- functions.php” in line: 466 right before `$screen = get_current_screen();"` * Plugin Contributor [Joost de Valk](https://wordpress.org/support/users/joostdevalk/) * (@joostdevalk) * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310441) * It’s a bug in iThemes Security. We’re working with them to look at how we can fix this 🙂 * Thread Starter [salvador21](https://wordpress.org/support/users/salvador21/) * (@salvador21) * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310442) * > It’s a bug in iThemes Security. We’re working with them to look at how we can > fix this 🙂 * Sadly that won’t help me as I don’t have iThemes security. * (Thanks for the recent Webiste Review BTW) * [Adam Nowak](https://wordpress.org/support/users/adam320/) * (@adam320) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310524) * Joost, any chance of a fix on this. I use All in One WP security and get the same fatal error when I change the login page from the default to a non standard login. The error occurs when you try to visit /wp-admin when not logged in. * [wordpresspresser](https://wordpress.org/support/users/wordpresspresser/) * (@wordpresspresser) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310525) * Same deal as Adam. Thank you! * [A](https://wordpress.org/support/users/topczipsy/) * (@topczipsy) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310526) * Hi, I got same error with Yoast SEO 3.2.5 and All In One WP Security 4.1.0. * /public_html/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions.php on line 467 * The error occurs when i try to visit /wp-admin when not logged in. * Thread Starter [salvador21](https://wordpress.org/support/users/salvador21/) * (@salvador21) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310527) * I am not getting this problem any more. Not sure if it was the Yoast update or another plugin (as stated above I have never had iThemes Security, but do have Wordfence. * [kwiecu](https://wordpress.org/support/users/kwiecu/) * (@kwiecu) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310533) * > Joost, any chance of a fix on this. I use All in One WP security and get the > same fatal error when I change the login page from the default to a non standard > login. The error occurs when you try to visit /wp-admin when not logged in. * exactly the same here (All in One WP + Yoast). * [Christian Rodríguez](https://wordpress.org/support/users/hanschristian/) * (@hanschristian) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310534) * Same as [@adam](https://wordpress.org/support/users/adam/) Nowak. I’m using a site with SSL + All In One WP Security plugin and is getting the same error from months ago: * Fatal error: Call to undefined function get_current_screen() in /home/xxxxxxx/ public_html/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions.php on line 467 * Will the next update fix this? * [tosunkaya](https://wordpress.org/support/users/tosunkaya/) * (@tosunkaya) * [10 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310535) * SAME ISSUE Fatal error: Call to undefined function get_current_screen() in /home/ xxxx/public_html/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions. php on line 467 * [Christian Rodríguez](https://wordpress.org/support/users/hanschristian/) * (@hanschristian) * [9 years, 12 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310537) * Solved in my last update 🙂 * Thank you so much! Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘Fatal error: Call to undefined function’ is closed to new replies. * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908) * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/) * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq) * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/) * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/) * 11 replies * 9 participants * Last reply from: [Christian Rodríguez](https://wordpress.org/support/users/hanschristian/) * Last activity: [9 years, 12 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-85/#post-7310537) * Status: resolved