Title: Fatal error, duplicate class
Last modified: September 7, 2026

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# Fatal error, duplicate class

 *  [howardflint](https://wordpress.org/support/users/howardflint/)
 * (@howardflint)
 * [2 weeks, 3 days ago](https://wordpress.org/support/topic/fatal-error-duplicate-class/)
 * Hi Sushil,
 * Your plugin caused a fatal error on my site (www.iCanitaCake.com) and WordPress
   automatically deactivated it to prevent a crash. Here are the details.
 * Error: PHP Fatal error, Cannot declare class Themes_Pack_Custom_Control because
   the name is already in use
 * File: wp-content/plugins/styles-and-layouts-for-gravity-forms/helpers/customizer-
   controls/custom-controls.php, line 7
 * Plugin version: 6.1
 * WordPress version: 7.1
 * PHP version: 8.3.32
 * Theme: Avada Child
 * This happened when visiting the Customizer page (wp-admin/customize.php). It 
   looks like the class is being declared twice somewhere in the plugin’s loading,
   possibly the file is being included more than once. Could you take a look? Happy
   to provide more details if needed.
 * Thanks

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 * 0 replies
 * 1 participant
 * Last reply from: [howardflint](https://wordpress.org/support/users/howardflint/)
 * Last activity: [2 weeks, 3 days ago](https://wordpress.org/support/topic/fatal-error-duplicate-class/)
 * Status: not resolved