Title: Error log: Undefined variable $blocking_cookie
Last modified: August 20, 2023

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# Error log: Undefined variable $blocking_cookie

 *  [mvrban](https://wordpress.org/support/users/mvrban/)
 * (@mvrban)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-log-undefined-variable-blocking_cookie/)
 * Hello,
 * I’m ggetting this error in error.log in public_html, it bloats that log to 12mb
   in 2 days, how to solve this?
 *     ```wp-block-code
       [18-Aug-2023 05:05:37 UTC] PHP Warning:  Undefined variable $blocking_cookie in /home/vidamhr/public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php on line 603
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-log-undefined-variable-blocking_cookie%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [Thomas Geiger](https://wordpress.org/support/users/duracelltomi/)
 * (@duracelltomi)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-log-undefined-variable-blocking_cookie/#post-16989305)
 * Hi,
 * This has been [fixed in the dev version](https://github.com/duracelltomi/gtm4wp/commit/c66db65a0b2286464bbc42138c585f2cc5a7b68b),
   I will release a bugfix version soon.

Viewing 1 replies (of 1 total)

The topic ‘Error log: Undefined variable $blocking_cookie’ is closed to new replies.

 * ![](https://ps.w.org/duracelltomi-google-tag-manager/assets/icon-256x256.png?
   rev=1708451)
 * [GTM4WP - A Google Tag Manager (GTM) plugin for WordPress](https://wordpress.org/plugins/duracelltomi-google-tag-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/duracelltomi-google-tag-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/duracelltomi-google-tag-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/duracelltomi-google-tag-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/duracelltomi-google-tag-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/duracelltomi-google-tag-manager/reviews/)

## Tags

 * [undefined](https://wordpress.org/support/topic-tag/undefined/)

 * 1 reply
 * 2 participants
 * Last reply from: [Thomas Geiger](https://wordpress.org/support/users/duracelltomi/)
 * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/error-log-undefined-variable-blocking_cookie/#post-16989305)
 * Status: not resolved