Title: error
Last modified: August 20, 2023

---

# error

 *  Resolved [wpshushu](https://wordpress.org/support/users/wpshushu/)
 * (@wpshushu)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/)
 * Uncaught Error: Call to undefined function stackable_auto_compatibility_v2() 
   in …/wp-content/plugins/stackable-ultimate-gutenberg-blocks-premium/pro__premium_only/
   src/deprecated/v2/init.php:20
 * version: 3.11.0

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [searchvista](https://wordpress.org/support/users/searchvista/)
 * (@searchvista)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/#post-16986598)
 * I’ve encountered this error on three sites. It’s a critical error, and will stop
   the site from working. I’ve not had time to investigate this.
 * To fix, you need to rename the Stackable plugin folder, then you can access WP
   admin.
 * Rename the folder back to its original name, then re-activate in WP.
 * Not all my sites with Stackable installed have had this problem.
 *  Plugin Author [Benjamin Intal](https://wordpress.org/support/users/bfintal/)
 * (@bfintal)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/#post-16987143)
 * Hello, thanks for providing a workaround for the issue. I’m happy to report that
   this has already been fixed in v3.11.1 (premium)
 * This issue also only happens in the premium version of the plugin and only in
   some scenarios. I’m resolving this for now, please let me know if you need any
   more help!
 *  [viche](https://wordpress.org/support/users/viche/)
 * (@viche)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/#post-16988334)
 * Hi! is there a way to list all my sites using this plugin?
 *  Plugin Author [Benjamin Intal](https://wordpress.org/support/users/bfintal/)
 * (@bfintal)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/#post-16989982)
 * Hey [@viche](https://wordpress.org/support/users/viche/) the issue reported by
   the original poster was an issue of the premium version of Stackable. So if you
   are using the free plugin, then you should be okay.
   If you are a premium user,
   you can log in our website [https://wpstackable.com/account/](https://wpstackable.com/account/)
   and you’ll be able to see the websites where you have Stackable activated.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘error’ is closed to new replies.

 * ![](https://ps.w.org/stackable-ultimate-gutenberg-blocks/assets/icon-256x256.
   png?rev=2749547)
 * [Stackable - Page Builder Gutenberg Blocks](https://wordpress.org/plugins/stackable-ultimate-gutenberg-blocks/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/stackable-ultimate-gutenberg-blocks/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/stackable-ultimate-gutenberg-blocks/)
 * [Active Topics](https://wordpress.org/support/plugin/stackable-ultimate-gutenberg-blocks/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/stackable-ultimate-gutenberg-blocks/unresolved/)
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 * 4 replies
 * 4 participants
 * Last reply from: [Benjamin Intal](https://wordpress.org/support/users/bfintal/)
 * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/error-1820/#post-16989982)
 * Status: resolved