Title: Cannot modify header information
Last modified: October 17, 2023

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# Cannot modify header information

 *  Resolved [rayhay6](https://wordpress.org/support/users/rayhay6/)
 * (@rayhay6)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-194/)
 * When ever I log out of my website with the plugin “Security by CleanTalk” active,
   I get the following line of error code 
   Please note this is when I have the define(‘
   WP_DEBUG’, true ); EnabledError Code:**Warning**: Cannot modify header information–
   headers already sent by (output started at /home/wmy-website/public_html/wp-includes/
   functions.php:5905) in **/home/my-website/public_html/wp-content/plugins/security-
   malware-firewall/lib/CleantalkSP/Variables/Cookie.php** on line **75**
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcannot-modify-header-information-194%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [katereji](https://wordpress.org/support/users/katereji/)
 * (@katereji)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-194/#post-17130306)
 * Hello.
 * I’ll pass this on to our developers. We will answer you within 3-5 business days.
 *  Plugin Support [katereji](https://wordpress.org/support/users/katereji/)
 * (@katereji)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-194/#post-17138066)
 * Hello.
 * Could you contact us via our ticket system [https://cleantalk.org/my/support/open](https://cleantalk.org/my/support/open)?
   We need to review your error logs, and this way it will be easier to send them
   to us.
 *  Plugin Support [katereji](https://wordpress.org/support/users/katereji/)
 * (@katereji)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-194/#post-17159448)
 * Hello.
   We haven’t heard back from you in a few days, so I’m going to mark this
   thread as “resolved”.If you have any further questions, you can start a new thread
   or contact us via our private Ticket System: [https://cleantalk.org/my/support/open](https://cleantalk.org/my/support/open).

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Cannot modify header information’ is closed to new replies.

 * ![](https://ps.w.org/security-malware-firewall/assets/icon-256x256.gif?rev=3518712)
 * [Security Plugin, Firewall & Malware Scanner with Auto Removal](https://wordpress.org/plugins/security-malware-firewall/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/security-malware-firewall/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/security-malware-firewall/)
 * [Active Topics](https://wordpress.org/support/plugin/security-malware-firewall/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/security-malware-firewall/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/security-malware-firewall/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [katereji](https://wordpress.org/support/users/katereji/)
 * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-194/#post-17159448)
 * Status: resolved