Title: Plugin creates error on my server
Last modified: January 15, 2023

---

# Plugin creates error on my server

 *  Resolved [lanagulotta](https://wordpress.org/support/users/lanagulotta/)
 * (@lanagulotta)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/plugin-creates-error-on-my-server/)
 * The plugin created error when added. My backend professional had to disable it.
   Could it be conflicting with Gutemberg? Error Message:
   Fatal error: Uncaught 
   TypeError: Argument 1 passed to Blockify\Plugin\add_show_patterns_body_class()
   must be of the type string, null given, called in /home/vediarts/public_html/
   owting-a/wp-includes/class-wp-hook.php on line 308 and defined in /home/vediarts/
   public_html/owting-a/wp-content/plugins/blockify/includes/pattern-editor.php:
   337 Stack trace: #0 /home/vediarts/public_html/owting-a/wp-includes/class-wp-
   hook.php(308): Blockify\Plugin\add_show_patterns_body_class(NULL) #1 /home/vediarts/
   public_html/owting-a/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL,
   Array) #2 /home/vediarts/public_html/owting-a/wp-admin/admin-header.php(242):
   apply_filters(‘admin_body_clas…’, ”) #3 /home/vediarts/public_html/owting-a/wp-
   admin/index.php(137): require_once(‘/home/vediarts/…’) #4 {main} thrown in /home/
   vediarts/public_html/owting-a/wp-content/plugins/blockify/includes/pattern-editor.
   php on line 337There has been a critical error on this website. Please check 
   your site admin email inbox for instructions.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugin-creates-error-on-my-server%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Plugin creates error on my server’ is closed to new replies.

 * ![](https://ps.w.org/blockify/assets/icon-256x256.png?rev=2756756)
 * [Blockify - Lightweight Full Site Editing Block Toolkit](https://wordpress.org/plugins/blockify/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/blockify/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/blockify/)
 * [Active Topics](https://wordpress.org/support/plugin/blockify/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/blockify/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/blockify/reviews/)

## Tags

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

 * 0 replies
 * 1 participant
 * Last reply from: [lanagulotta](https://wordpress.org/support/users/lanagulotta/)
 * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/plugin-creates-error-on-my-server/)
 * Status: resolved