Title: Sessions Errors
Last modified: January 10, 2020

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# Sessions Errors

 *  Resolved [Nat Miletic](https://wordpress.org/support/users/nmiletic/)
 * (@nmiletic)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/sessions-errors-2/)
 * Hi,
    I am getting a session warning on my site that I am trying to troubleshoot
   unsuccessfully. I have also tried disabling the user tracking plugin for Formidable
   but I am still getting the first PHP warning so these two are not tied to each
   other I don’t think.
 * Here is the PHP warning message:
    [10-Jan-2020 21:11:01 UTC] PHP Warning: session_set_save_handler():
   Cannot change save handler when headers already sent in /srv/bindings/9c9cf2e3a19f4dd7a9c1e4e7d221fe6d/
   code/wp-content/plugins/wp-native-php-sessions/pantheon-sessions.php on line 
   163 [10-Jan-2020 21:11:01 UTC] PHP Warning: session_start(): Cannot start session
   when headers already sent in /srv/bindings/9c9cf2e3a19f4dd7a9c1e4e7d221fe6d/code/
   wp-content/plugins/formidable-user-tracking/formidable-user-tracking.php on line
   57
 * Thanks,
    Nat
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fsessions-errors-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Contributor [Daniel Bachhuber](https://wordpress.org/support/users/danielbachhuber/)
 * (@danielbachhuber)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/sessions-errors-2/#post-12321214)
 * Hi [@nmiletic](https://wordpress.org/support/users/nmiletic/),
 * It seems like you might have some code that’s starting a session before WP Native
   PHP Sessions is loaded, or another plugin that has its own PHP sessions implementation.
 * Can you send an email to the address [listed on my GitHub profile](https://github.com/danielbachhuber/)
   and we can look at this further?
 * Thanks!
 *  Plugin Contributor [Daniel Bachhuber](https://wordpress.org/support/users/danielbachhuber/)
 * (@danielbachhuber)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/sessions-errors-2/#post-12325849)
 * Just to close the loop on this, we weren’t able to track down the specific problem
   because it’s no longer occurring.
 * Based on the specific error message though, it seems like some other plugin was
   sending headers before it should’ve. This would cause the notice you saw.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Sessions Errors’ is closed to new replies.

 * ![](https://ps.w.org/wp-native-php-sessions/assets/icon-256x256.png?rev=3411177)
 * [Native PHP Sessions](https://wordpress.org/plugins/wp-native-php-sessions/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-native-php-sessions/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-native-php-sessions/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-native-php-sessions/reviews/)

## Tags

 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 2 replies
 * 2 participants
 * Last reply from: [Daniel Bachhuber](https://wordpress.org/support/users/danielbachhuber/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/sessions-errors-2/#post-12325849)
 * Status: resolved