Title: Failed to initialize plugin: acfe_form
Last modified: April 27, 2022

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# Failed to initialize plugin: acfe_form

 *  Resolved [iahon](https://wordpress.org/support/users/iahon/)
 * (@iahon)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/)
 * Hello,
 * We recently updated ACFE from 8.6.6 to 8.6.7 and after doing so we found that
   updating it seems to have broken the plugin. We get the error
 * `Failed to initialize plugin: acfe_form`
 * which (if checking in the dev console, can be expanded to)
 * `Failed to initialize plugin: acfe_form TypeError: Cannot read properties of 
   undefined (reading 'register')`
 * This error occurs on any Gutenberg page editor where a custom element is used(
   and prevents us from using said elements, like uploading an image to a CTA element
   or uploading a featured image.
 * Has anyone an idea how to fix this error?

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Konrad Chmielewski](https://wordpress.org/support/users/hwk-fr/)
 * (@hwk-fr)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15616873)
 * Hello,
 * Thanks for the feedback!
 * Hmm that’s a strange issue. First, I would recommend to re-download and upload
   the plugin entirely, just to make sure the files are correctly updated.
 * Then I would recommend to disable all your plugins one by one (at the exception
   of ACF Pro and ACF Extended). If the problem persists, try to switch to the native
   WP Twenty Twenty One theme, in order to make sure the problem doesn’t come from
   a custom code somewhere in your theme.
 * Let me know if you found something.
 * Regards.
 *  Plugin Author [Konrad Chmielewski](https://wordpress.org/support/users/hwk-fr/)
 * (@hwk-fr)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15632116)
 * Hello,
 * Any news?
 * Regards.
 *  Thread Starter [iahon](https://wordpress.org/support/users/iahon/)
 * (@iahon)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15637399)
 * Hello hwk-fr,
 * Sorry for the late reply, I didn’t see the email from your first reply. We kinda
   did what you said, but we solved it be rolling back WP to version 9.0. It seems
   that, at least on our site, any WP version > 9.0 breaks the plugin.
 *  Plugin Author [Konrad Chmielewski](https://wordpress.org/support/users/hwk-fr/)
 * (@hwk-fr)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15637644)
 * Hello!
 * Thanks for the answer. There is no WordPress “9.0” version tho, maybe you’re 
   talking about a plugin?
 * The current official WordPress version is 5.9.3 ([See official website](https://wordpress.org/download/)).
 * I can confirm you that ACF Extended works from WordPress 4.9 up to 5.9.3, on 
   a clean WP install.
 * As suggested in my previous answer, I would strongly recommend to try to disable
   your plugins one by one (at the exception of ACF & ACF Extended) in order to 
   find which plugin is causing the issue. The error most likely come from a custom
   code/plugin that interfere with the WP Editor, and it may behave differently 
   when you rollback to that “9.0” version.
 * Hope it helps!
 * Have a nice day!
 * Regards.
 *  Thread Starter [iahon](https://wordpress.org/support/users/iahon/)
 * (@iahon)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15637792)
 * Yeah, I meant to type 5.9.0 but I forgot the 5.
 * Our website is a custom built website made by another company on a non-standard
   WP build. Seems to break after wp 5.9.0.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Failed to initialize plugin: acfe_form’ is closed to new replies.

 * ![](https://ps.w.org/acf-extended/assets/icon-256x256.png?rev=2071550)
 * [Advanced Custom Fields: Extended](https://wordpress.org/plugins/acf-extended/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/acf-extended/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/acf-extended/unresolved/)
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 * 5 replies
 * 2 participants
 * Last reply from: [iahon](https://wordpress.org/support/users/iahon/)
 * Last activity: [4 years ago](https://wordpress.org/support/topic/failed-to-initialize-plugin-acfe_form/#post-15637792)
 * Status: resolved