2Factor authentification with PHP 8.0 Not Working’

This error occurs if i want to get in as Superadministrator in my multisteblog. Regular admin doesnt have this problem.

Could you share more details on the error? Normally, a few lines of code (line numbers) are shown along with an error message.

Hi Gregory,

i run the newest download of cerber, i think its 9.3 and there s no other message than “Error thrown Undefined constant “AUTOSAVE_INTERVAL” and a white site. As i told, it occurs only when i want to log in as Superadministrator. I ve run cerber since two years and i did not have any probs. I only can login when i disable cerber plugin.
thanx

Could you check the server error log for related entries?

that the php-error log if i want to log in:

31-Oct-2022 11:10:48] NOTICE: using inherited socket fd=3, "/run/php-fpm-hypnose1.sock"
[31-Oct-2022 11:10:48] NOTICE: fpm is running, pid 5698
[31-Oct-2022 11:10:48] NOTICE: ready to handle connections
[31-Oct-2022 11:10:48] NOTICE: systemd monitor interval set to 10000ms
[31-Oct-2022 11:13:04] WARNING: [pool www] child 7386 said into stderr: "[31-Oct-2022 11:13:04 Europe/Berlin] PHP Warning:  Constant WP_CONTENT_URL already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 90"
[31-Oct-2022 11:13:04] WARNING: [pool www] child 7386 said into stderr: "[31-Oct-2022 11:13:04 Europe/Berlin] PHP Warning:  Constant AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 96"
[31-Oct-2022 11:13:04] WARNING: [pool www] child 7386 said into stderr: "[31-Oct-2022 11:13:04 Europe/Berlin] PHP Warning:  Constant SECURE_AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 97"
[31-Oct-2022 11:13:04] WARNING: [pool www] child 7386 said into stderr: "[31-Oct-2022 11:13:04 Europe/Berlin] PHP Warning:  Constant LOGGED_IN_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 98"
[31-Oct-2022 11:13:04] WARNING: [pool www] child 7386 said into stderr: "[31-Oct-2022 11:13:04 Europe/Berlin] PHP Warning:  Constant NONCE_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 99"

Hi Gregory,
here s the newest log – any opinion?
thanx Oliver
php error log
`[03-Nov-2022 07:17:06] NOTICE: error log file re-opened
[03-Nov-2022 07:17:06] WARNING: [pool www] child 16956 exited on signal 10 (SIGUSR1) after 280.576927 seconds from start
[03-Nov-2022 07:17:06] NOTICE: [pool www] child 20529 started
[03-Nov-2022 07:17:06] WARNING: [pool www] child 16415 exited on signal 10 (SIGUSR1) after 345.960627 seconds from start
[03-Nov-2022 07:17:06] NOTICE: [pool www] child 20532 started
[03-Nov-2022 07:17:25] WARNING: [pool www] child 20529 said into stderr: “[03-Nov-2022 07:17:25 Europe/Berlin] PHP Warning: Constant WP_CONTENT_URL already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 90”
[03-Nov-2022 07:17:25] WARNING: [pool www] child 20529 said into stderr: “[03-Nov-2022 07:17:25 Europe/Berlin] PHP Warning: Constant AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 96”
[03-Nov-2022 07:17:25] WARNING: [pool www] child 20529 said into stderr: “[03-Nov-2022 07:17:25 Europe/Berlin] PHP Warning: Constant SECURE_AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 97”
[03-Nov-2022 07:17:25] WARNING: [pool www] child 20529 said into stderr: “[03-Nov-2022 07:17:25 Europe/Berlin] PHP Warning: Constant LOGGED_IN_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 98”
[03-Nov-2022 07:17:25] WARNING: [pool www] child 20529 said into stderr: “[03-Nov-2022 07:17:25 Europe/Berlin] PHP Warning: Constant NONCE_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 99”
[03-Nov-2022 07:18:22] WARNING: [pool www] child 20532 said into stderr: “[03-Nov-2022 07:18:22 Europe/Berlin] PHP Warning: Constant WP_CONTENT_URL already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 90”
[03-Nov-2022 07:18:22] WARNING: [pool www] child 20532 said into stderr: “[03-Nov-2022 07:18:22 Europe/Berlin] PHP Warning: Constant AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 96”
[03-Nov-2022 07:18:22] WARNING: [pool www] child 20532 said into stderr: “[03-Nov-2022 07:18:22 Europe/Berlin] PHP Warning: Constant SECURE_AUTH_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 97”
[03-Nov-2022 07:18:22] WARNING: [pool www] child 20532 said into stderr: “[03-Nov-2022 07:18:22 Europe/Berlin] PHP Warning: Constant LOGGED_IN_SALT already defined in /var/www/virtual/hypnose1/html/wp-config.php on line 98”
[03-Nov-2022 07:18:22] WARNING: [pool www] child 20532 said into stderr:

apache log
[Thu Nov 03 05:19:49 2022] [error] [pid 19681] mod_autoindex.c(2326): [client 51.255.0.0] AH01276: Cannot serve directory /var/www/virtual/hypnose1/html/wp-includes/css/dist/block-library/: No matching DirectoryIndex (index.html,index.htm,index.html.var,index.php,index.cgi,index.sh,nocontent.html) found, and server-generated directory index forbidden by Options directive

@gioni,

Any update on this? I am also facing similar issue after upgrading to PHP 8.1.

Got error 'PHP message: PHP Fatal error: Uncaught Error: Undefined constant "AUTOSAVE_INTERVAL" in /wp-includes/script-loader.php:1804\nStack trace:\n#0 /wp-includes/class-wp-hook.php(308): wp_just_in_time_script_localization()\n#1 /wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()\n#2 /wp-includes/plugin.php(517): WP_Hook->do_action()\n#3 /wp-includes/script-loader.php(2012): do_action()\n#4 /wp-content/plugins/wp-cerber/cerber-2fa.php(472): print_head_scripts()\n#5 /wp-content/plugins/wp-cerber/cerber-2fa.php(349): CRB_2FA::show_2fa_page()\n#6 /wp-content/plugins/wp-cerber/cerber-load.php(1750): CRB_2FA::restrict_and_verify()\n#7 /wp-content/plugins/...', referer: https://test.com/wp-login.php in the console.

Just saw this thread and wanted to post my log as well. Also running PHP 8 on my servers:

[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

Found a fix for this. In your wp-config add this line to fix the error:

define( 'AUTOSAVE_INTERVAL', 60 );

This worked for me, thank you!

@gioni,

Does WP-Cerber consider this issue as a bug or not? Does the changes suggested is an ideal solution or do we need to change anything else as well?

Yes, it’s a bug. This week we release a new version of WP Cerber with a bug fix.

@gioni,
Thanks for the update. Looking forward for the bug fix.

Hi! It’s been fixed in WP Cerber 9.4: https://wpcerber.com/wp-cerber-security-9-4/

@manojmohandev @lenaccp @esg450