Title: Fatal TypeError in processWidgetContent
Last modified: December 16, 2025

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# Fatal TypeError in processWidgetContent

 *  Resolved [mkoscher](https://wordpress.org/support/users/mkoscher/)
 * (@mkoscher)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-typeerror-in-processwidgetcontent/)
 * Hi,
   after the last update i get a fatal error on the whole site.Can you please
   help me, how to fix this.
 * Many thanks in advance
 * PHP Fatal error: Uncaught TypeError: CryptX\CryptX::processWidgetContent(): Argument#
   1 ($instance) must be of type array, false given, called in wp-includes/class-
   wp-hook.php on line 341 and defined in wp-content/plugins/cryptx/classes/CryptX.
   php:1107
   Stack trace: 0 wp-includes/class-wp-hook.php(341): CryptX\CryptX->processWidgetContent()
   1 wp-includes/plugin.php(205): WP_Hook->apply_filters() 2 wp-includes/class-wp-
   widget.php(383): apply_filters() 3 wp-includes/widgets.php(845): WP_Widget->display_callback()

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Ralf Weber](https://wordpress.org/support/users/d3395/)
 * (@d3395)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-typeerror-in-processwidgetcontent/#post-18757765)
 * Hi [@mkoscher](https://wordpress.org/support/users/mkoscher/) 
   thanks for providing
   the stack trace.
 * Is it possible, that you edit the code to see, if this solves it?
 * …/wp-content/plugins/cryptx/classes/CryptX.php
   replace the lines 1107 – 1108…
 *     ```wp-block-code
           public function processWidgetContent(array $instance, $widget, $args): array    {
       ```
   
 * with…
 *     ```wp-block-code
           public function processWidgetContent(array|false $instance, $widget, $args): array|false    {        if ($instance === false) {            return false;        }
       ```
   
 * Unfortunately, I couldn’t reproduce the error on my test system, but the change
   didn’t cause any new problems.
 * If this resolves the issue, I will release a fixed version as soon as possible.
 *  Thread Starter [mkoscher](https://wordpress.org/support/users/mkoscher/)
 * (@mkoscher)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-typeerror-in-processwidgetcontent/#post-18757863)
 * Thanks for your help,
 * the patch works, even without the if.
 *  Plugin Author [Ralf Weber](https://wordpress.org/support/users/d3395/)
 * (@d3395)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-typeerror-in-processwidgetcontent/#post-18757958)
 * Version 4.0.10 with the fix is released.
 * The If statement is there so that the entire method doesn’t have to run if no
   widget data (false) has been passed.

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 5 replies
 * 2 participants
 * Last reply from: [Ralf Weber](https://wordpress.org/support/users/d3395/)
 * Last activity: [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-typeerror-in-processwidgetcontent/#post-18757958)
 * Status: resolved