Title: Error when enabling 2FA
Last modified: December 15, 2022

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# Error when enabling 2FA

 *  Resolved [esg450](https://wordpress.org/support/users/esg450/)
 * (@esg450)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/error-when-enabling-2fa/)
 * Hi, it seems like I’ve started getting an error when attempting to login with
   2FA after updating to 6.1.1. I’m also running cerber 9.3.3. Here is the error
   I’m receiving:
 *     ```
       [14-Dec-2022 20:35:47 UTC] PHP Fatal error:  Uncaught Error: Undefined constant "AUTOSAVE_INTERVAL" in /var/www/public/wp-includes/script-loader.php:1804
       Stack trace:
       #0 /var/www/public/wp-includes/class-wp-hook.php(308): wp_just_in_time_script_localization('')
       #1 /var/www/public/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array)
       #2 /var/www/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
       #3 /var/www/public/wp-includes/script-loader.php(2012): do_action('wp_print_script...')
       #4 /var/www/public/wp-content/plugins/wp-cerber/cerber-2fa.php(472): print_head_scripts()
       #5 /var/www/public/wp-content/plugins/wp-cerber/cerber-2fa.php(349): CRB_2FA::show_2fa_page()
       #6 /var/www/public/wp-content/plugins/wp-cerber/cerber-load.php(1732): CRB_2FA::restrict_and_verify(1)
       #7 /var/www/public/wp-content/plugins/wp-cerber/cerber-load.php(1700): cerber_restrict_user(1)
       #8 /var/www/public/wp-includes/class-wp-hook.php(308): {closure}('')
       #9 /var/www/public/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array)
       #10 /var/www/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
       #11 /var/www/public/wp-includes/pluggable.php(48): do_action('set_current_use...')
       #12 /var/www/public/wp-includes/user.php(3610): wp_set_current_user(1)
       #13 /var/www/public/wp-includes/pluggable.php(70): _wp_get_current_user()
       #14 /var/www/public/wp-includes/capabilities.php(873): wp_get_current_user()
       #15 /var/www/public/wp-content/plugins/enable-media-replace/classes/emr-plugin.php(45): current_user_can('upload_files')
       #16 /var/www/public/wp-includes/class-wp-hook.php(308): EnableMediaReplace\EnableMediaReplacePlugin->runtime('')
       #17 /var/www/public/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
       #18 /var/www/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
       #19 /var/www/public/wp-settings.php(480): do_action('plugins_loaded')
       #20 /var/www/public/wp-config.php(143): require_once('/var/www/public...')
       #21 /var/www/public/wp-load.php(50): require_once('/var/www/public...')
       #22 /var/www/public/wp-blog-header.php(13): require_once('/var/www/public...')
       #23 /var/www/public/index.php(17): require('/var/www/public...')
       #24 {main}
         thrown in /var/www/public/wp-includes/script-loader.php on line 1804
       ```
   
 * It seems like the email DOES get sent to the user, but this error displays when
   the 2fa page attempts to display.

The topic ‘Error when enabling 2FA’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [esg450](https://wordpress.org/support/users/esg450/)
 * Last activity: [3 years, 3 months ago](https://wordpress.org/support/topic/error-when-enabling-2fa/)
 * Status: resolved