Title: Error in Apache Log
Last modified: March 14, 2023

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# Error in Apache Log

 *  [buyhigh](https://wordpress.org/support/users/buyhigh/)
 * (@buyhigh)
 * [3 years, 2 months ago](https://wordpress.org/support/topic/error-in-apache-log/)
 * Hello,
 * I found this error message in the Apache log – what does that mean?
 * Thanks a lot for your help!
 * [Tue Mar 14 11:00:16.805073 2023] [proxy_fcgi:error] [pid 3492730:tid 140673231501056][
   client 103.35.64.73:58194] AH01071: Got error ‘PHP message: PHP Fatal error: 
   Uncaught Error: Call to undefined function login_header() in /var/www/share/buyhigh.
   de/htdocs/wp-content/plugins/google-authenticator/google-authenticator.php:638\
   nStack trace:\n#0 /var/www/share/buyhigh.de/htdocs/wp-content/plugins/google-
   authenticator/google-authenticator.php(625): GoogleAuthenticator->secondary_login_screen()\
   n#1 /var/www/share/buyhigh.de/htdocs/wp-includes/class-wp-hook.php(308): GoogleAuthenticator-
   >check_otp(Object(WP_User), ‘admin’, ‘admin00’)\n#2 /var/www/share/buyhigh.de/
   htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters(Object(WP_Error), 
   Array)\n#3 /var/www/share/buyhigh.de/htdocs/wp-includes/pluggable.php(614): apply_filters(‘
   authenticate’, NULL, ‘admin’, ‘admin00’)\n#4 /var/www/share/buyhigh.de/htdocs/
   wp-includes/class-wp-xmlrpc-server.php(295): wp_authenticate(‘admin’, ‘admin00’)\
   n#5 /var/www/share/buyhigh.de/htdocs/wp-includes/class-wp-xmlrpc-server.php(4821):
   wp_xmlrpc_server->login(‘admin’, ‘admin00′)\n#6 /var/www/share/buyhigh.de/htd…’
   [
   Tue Mar 14 11:00:57.149886 2023] [proxy_fcgi:error] [pid 3492730:tid 140673466496768][
   client 162.214.59.10:14252] AH01071: Got error ‘PHP message: PHP Fatal error:
   Uncaught Error: Call to undefined function login_header() in /var/www/share/buyhigh.
   de/htdocs/wp-content/plugins/google-authenticator/google-authenticator.php:638\
   nStack trace:\n#0 /var/www/share/buyhigh.de/htdocs/wp-content/plugins/google-
   authenticator/google-authenticator.php(625): GoogleAuthenticator->secondary_login_screen()\
   n#1 /var/www/share/buyhigh.de/htdocs/wp-includes/class-wp-hook.php(308): GoogleAuthenticator-
   >check_otp(Object(WP_User), ‘admin’, ‘admin00’)\n#2 /var/www/share/buyhigh.de/
   htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters(Object(WP_Error), 
   Array)\n#3 /var/www/share/buyhigh.de/htdocs/wp-includes/pluggable.php(614): apply_filters(‘
   authenticate’, NULL, ‘admin’, ‘admin00’)\n#4 /var/www/share/buyhigh.de/htdocs/
   wp-includes/class-wp-xmlrpc-server.php(295): wp_authenticate(‘admin’, ‘admin00’)\
   n#5 /var/www/share/buyhigh.de/htdocs/wp-includes/class-wp-xmlrpc-server.php(4821):
   wp_xmlrpc_server->login(‘admin’, ‘admin00′)\n#6 /var/www/share/buyhigh.de/htd…’

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 * 0 replies
 * 1 participant
 * Last reply from: [buyhigh](https://wordpress.org/support/users/buyhigh/)
 * Last activity: [3 years, 2 months ago](https://wordpress.org/support/topic/error-in-apache-log/)
 * Status: not resolved