Title: cerber-load.php error
Last modified: March 15, 2019

---

# cerber-load.php error

 *  [flexidea](https://wordpress.org/support/users/flexidea/)
 * (@flexidea)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/cerber-load-php-error/)
 * I use this plugin in many sites. In all I get the same error in my log files:
 * [15-Mar-2019 09:24:15 UTC] PHP Warning: Cannot modify header information – headers
   already sent in …./wp-content/plugins/wp-cerber/cerber-load.php on line 779
 * How can I fix this?
 * WP Cerber Security 8.1. in the Legacy mode
    Wordpress 5.1.1

Viewing 1 replies (of 1 total)

 *  Plugin Author [gioni](https://wordpress.org/support/users/gioni/)
 * (@gioni)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/cerber-load-php-error/#post-11317179)
 * First of all, why do use the legacy mode? Go to Main Settings, set “Load security
   engine” to “Standard mode”.

Viewing 1 replies (of 1 total)

The topic ‘cerber-load.php error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-cerber_77a9bf.svg)
 * [WP Cerber Security, Anti-spam & Malware Scan](https://wordpress.org/plugins/wp-cerber/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-cerber/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-cerber/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-cerber/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-cerber/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-cerber/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [gioni](https://wordpress.org/support/users/gioni/)
 * Last activity: [7 years, 2 months ago](https://wordpress.org/support/topic/cerber-load-php-error/#post-11317179)
 * Status: not resolved