Title: Appearance Customize Error
Last modified: October 25, 2023

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# Appearance Customize Error

 *  [izzy909](https://wordpress.org/support/users/izzy909/)
 * (@izzy909)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/appearance-customize-error/)
 * My website uses Tatsu page builder with the Exponent theme. I get critical error
   when I try to access Appearance > Customize in wordpress. If I disable your plugin
   I can access Customize but features are missing like being able to change settings
   for blog posts etc. I did not have these issues before. What is a possible solution
   to fix your plugin error?
   Fatal error: Uncaught Error: Class ‘Kirki_Control_Base’
   not found in /home2/fkn5crxv/public_html/wp-content/themes/exponent/inc/admin/
   customizer/custom-controls.php:5 Stack trace: #0 /home2/fkn5crxv/public_html/
   wp-content/themes/exponent/inc/classes/class-be-options.php(17): require_once()#
   1 /home2/fkn5crxv/public_html/wp-content/themes/exponent/inc/classes/class-be-
   options.php(12): Be_Options->load_dependencies() #2 /home2/fkn5crxv/public_html/
   wp-content/themes/exponent/inc/classes/class-be-options.php(100): Be_Options-
   >__construct(‘Exponent’, ‘1.0.3’) #3 /home2/fkn5crxv/public_html/wp-content/themes/
   exponent/inc/admin/init.php(4): require_once(‘/home2/fkn5crxv…’) #4 /home2/fkn5crxv/
   public_html/wp-content/themes/exponent/functions.php(94): require_once(‘/home2/
   fkn5crxv…’) #5 /home2/fkn5crxv/public_html/wp-settings.php(600): include(‘/home2/
   fkn5crxv…’) #6 /home2/fkn5crxv/public_html/wp-config.php(95): require_once(‘/
   home2/fkn5crxv…’) #7 /home2/fkn5crxv/public_html/wp-load.php(50): require_once(‘/
   home2/fkn5crxv… in /home2/fkn5crxv/public_html/wp-content/themes/exponent/inc/
   admin/customizer/custom-controls.php on line 5

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 * 0 replies
 * 1 participant
 * Last reply from: [izzy909](https://wordpress.org/support/users/izzy909/)
 * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/appearance-customize-error/)
 * Status: not resolved