Title: Plugin Causing ‘Active PHP Session’ Error
Last modified: February 7, 2021

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# Plugin Causing ‘Active PHP Session’ Error

 *  Resolved [iamahfaz](https://wordpress.org/support/users/iamahfaz/)
 * (@iamahfaz)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/plugin-causing-active-php-session-error/)
 * I installed the TutorLMS plugin along with the TutorLMS Elementor Addons plugin
   yesterday.
 * The plugin was working fine and I was able to edit the Course page in Elementor
   without any issues. But now, whenever I save the Course page in the backend (
   Gutenberg), I get this error:
 * “Updating failed. The response is not a valid JSON response.”
 * The Course page saves successfully on the Elementor page builder. I disabled 
   the TutorLMS Elementor Addon which seems to fix the issue.
 * But when I check the Site Health, it shows three critical errors:
 * 1. An active PHP session was detected
    2. The REST API encountered an error 3.
   Your site could not complete a loopback request
 * On deactivating the TutorLMS and its Elementor Addon plugin, the issues seem 
   to disappear.
 * This means that the TutorLMS is causing the issue.
 * So far, I’ve tried these fixes:
 * 1. Cleared the site cache.
    2. Updated the permalink structure (it is set to 
   postname).
 * I don’t know what else to do to fix this problem. Please help me out.
 * Thank You,
    Ahfaz

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

 *  [pmng](https://wordpress.org/support/users/pmng/)
 * (@pmng)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/plugin-causing-active-php-session-error/#post-14029422)
 * I have the same problem. I think the plugin has conflict with the latest version
   of the wordpress, based on what I have read on google search.
    Anyone knows how
   to fix this because we have SEO problems due to this conflict?
 * Thank you,
    ASal
 *  [Sekander Badsha](https://wordpress.org/support/users/badsha_eee/)
 * (@badsha_eee)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/plugin-causing-active-php-session-error/#post-14029954)
 * Hi,
 * We have fixed the problem and planning to release an update within tomorrow night.
   Thank you so much for your patience and kind cooperation.
 *  [parhamm](https://wordpress.org/support/users/parhamm/)
 * (@parhamm)
 * [5 years ago](https://wordpress.org/support/topic/plugin-causing-active-php-session-error/#post-14482515)
 * Hi there.
 * It seems that this problem as arisen again. I have the latest version of TutorLMS
   Pro and WordPress. Getting the same error message below when trying to save on
   the course page:
 * Updating failed. The response is not a valid JSON response
 * Does TutorLMS Pro plugin require another update?

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

The topic ‘Plugin Causing ‘Active PHP Session’ Error’ is closed to new replies.

 * ![](https://ps.w.org/tutor/assets/icon-256x256.gif?rev=3193875)
 * [Tutor LMS - eLearning and online course solution](https://wordpress.org/plugins/tutor/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/tutor/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/tutor/)
 * [Active Topics](https://wordpress.org/support/plugin/tutor/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/tutor/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/tutor/reviews/)

## Tags

 * [json response](https://wordpress.org/support/topic-tag/json-response/)
 * [tutor lms](https://wordpress.org/support/topic-tag/tutor-lms/)
 * [Updating failed](https://wordpress.org/support/topic-tag/updating-failed/)

 * 3 replies
 * 4 participants
 * Last reply from: [parhamm](https://wordpress.org/support/users/parhamm/)
 * Last activity: [5 years ago](https://wordpress.org/support/topic/plugin-causing-active-php-session-error/#post-14482515)
 * Status: resolved