Title: Fatal error message when editing a theme
Last modified: August 25, 2017

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# Fatal error message when editing a theme

 *  [swessey](https://wordpress.org/support/users/swessey/)
 * (@swessey)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-when-editing-a-theme/)
 * So I am trying to edit a theme. But I just get this fatal error message, I can
   edit the Humean theme because it’s active but I can’t edit any other theme :/
   
   If any dev of the theme needs to login and try I will gladly create a administrator
   account for you.
 * **Fatal error: Uncaught Error: Class ‘HA_Customize_Header_Image_Data_Setting’
   not found in /home/linus/blog/wp-content/plugins/hueman-addons/addons/skop/czr-
   skop.php:2333 Stack trace: #0 /home/linus/blog/wp-includes/class-wp-hook.php(
   298): HA_Skop_Cust_Register->ha_alter_wp_customizer_settings(Object(WP_Customize_Manager))#
   1 /home/linus/blog/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(
   NULL, Array) #2 /home/linus/blog/wp-includes/plugin.php(453): WP_Hook->do_action(
   Array) #3 /home/linus/blog/wp-includes/class-wp-customize-manager.php(754): do_action(‘
   customize_regis…’, Object(WP_Customize_Manager)) #4 /home/linus/blog/wp-includes/
   class-wp-hook.php(298): WP_Customize_Manager->wp_loaded(”) #5 /home/linus/blog/
   wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #6 /home/
   linus/blog/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #7 /home/linus/
   blog/wp-settings.php(469): do_action(‘wp_loaded’) #8 /home/linus/blog/wp-config.
   php(94): require_once(‘/home/linus/blo…’) #9 /home/linus/blo in /home/linus/blog/
   wp-content/plugins/hueman-addons/addons/skop/czr-skop.php on line 2333**
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-message-when-editing-a-theme%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [swessey](https://wordpress.org/support/users/swessey/)
 * (@swessey)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-when-editing-a-theme/#post-9440956)
 * I found the problem. something in _Hueman Addons _ creates an error so I can’t
   live preview another theme that’s not active. So I tried deactivating _Hueman
   Addons_ and it works now, but it is a little annoying That I can’t preview a 
   theme with _Hueman Addons_ active 🙂
 *  Plugin Contributor [Rocco Aliberti](https://wordpress.org/support/users/d4z_c0nf/)
 * (@d4z_c0nf)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-when-editing-a-theme/#post-9458081)
 * Hi [@swessey](https://wordpress.org/support/users/swessey/),
    thanks for reporting
   this.
 * The dev team is investigating into this issue.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Fatal error message when editing a theme’ is closed to new replies.

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## Tags

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

 * 2 replies
 * 2 participants
 * Last reply from: [Rocco Aliberti](https://wordpress.org/support/users/d4z_c0nf/)
 * Last activity: [8 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-when-editing-a-theme/#post-9458081)
 * Status: not resolved