Title: PHP Warning: Cannot modify header information
Last modified: August 30, 2023

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# PHP Warning: Cannot modify header information

 *  Resolved [mrkunau](https://wordpress.org/support/users/mrkunau/)
 * (@mrkunau)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-25/)
 * [30-Aug-2023 01:05:15 UTC] PHP Warning: Cannot modify header information – headers
   already sent in /wp-content/plugins/pixelyoursite/includes/class-pys.php on line
   194
   PHP Warning after upgrade 9.4.4

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

 *  [j2fb](https://wordpress.org/support/users/j2fb/)
 * (@j2fb)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-25/#post-17016365)
 * Same problem here! Any suggestions?
 *  [Ryan](https://wordpress.org/support/users/ryanlifex/)
 * (@ryanlifex)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-25/#post-17027135)
 * [@mrkunau](https://wordpress.org/support/users/mrkunau/) plugin support says 
   they have a potential fix that–if confirmed–they will release tomorrow (9/6/2023).
 *  [kognos](https://wordpress.org/support/users/kognos/)
 * (@kognos)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-25/#post-17030723)
 * I disabled the “Track key actions with the automatic events” option in the General
   settings area and the problem is gone.

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

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

 * ![](https://ps.w.org/pixelyoursite/assets/icon-256x256.jpg?rev=3178123)
 * [PixelYourSite - Your smart PIXEL (TAG) & API Manager](https://wordpress.org/plugins/pixelyoursite/)
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 * 3 replies
 * 4 participants
 * Last reply from: [kognos](https://wordpress.org/support/users/kognos/)
 * Last activity: [2 years, 8 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-25/#post-17030723)
 * Status: resolved