Title: Fatal error: Uncaught TypeError…
Last modified: November 17, 2024

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# Fatal error: Uncaught TypeError…

 *  Resolved [HansRuedi](https://wordpress.org/support/users/schwarzaufweiss/)
 * (@schwarzaufweiss)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/)
 * **wp-Typography** 5.9.1 on top off WP 6.6.2 and PHP Version 8.2.25 with 256 MB
   memory limit I’ve got a few times the following error in my log:
 * Fatal error: Uncaught TypeError: WP_Typography\Implementation::process(): Return
   value must be of type string, null returned in /home/www-data/schreibrausch.ch/
   wp-content/plugins/wp-typography/includes/wp-typography/class-implementation.
   php:420 
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-uncaught-typeerror-38%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 8 replies - 1 through 8 (of 8 total)

 *  Plugin Author [pepe](https://wordpress.org/support/users/pputzer/)
 * (@pputzer)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18141806)
 * Somehow, `null` has been passed instead of a `string` as the first parameter 
   of `::process`. That would likely be an issue in another plugin. Do you have 
   a full stack trace for the call?
 *  Thread Starter [HansRuedi](https://wordpress.org/support/users/schwarzaufweiss/)
 * (@schwarzaufweiss)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18141824)
 * 1. WP_Typography\Implementation->process()/home/www-data/schreibrausch.ch/wp-
   content/plugins/wp-typography/includes/wp-typography/class-implementation.php:
   325
   2. WP_Typography\Implementation->process_title()/home/www-data/schreibrausch.
   ch/wp-includes/class-wp-hook.php:3264. apply_filters()/home/www-data/schreibrausch.
   ch/wp-includes/widgets/class-wp-widget-text.php:2335. WP_Widget_Text->widget()/
   home/www-data/schreibrausch.ch/wp-includes/class-wp-widget.php:3946. WP_Widget-
   >display_callback()/home/www-data/schreibrausch.ch/wp-includes/widgets.php:8457.
   dynamic_sidebar()/home/www-data/schreibrausch.ch/wp-content/themes/graphy-pro/
   sidebar.php:1610. locate_template()/home/www-data/schreibrausch.ch/wp-includes/
   general-template.php:13611. get_sidebar()/home/www-data/schreibrausch.ch/wp-content/
   themes/graphy-pro/page.php:2914. require(‘…’)/home/www-data/schreibrausch.ch/
   index.php:1715. {main}
 *  Plugin Author [pepe](https://wordpress.org/support/users/pputzer/)
 * (@pputzer)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18141836)
 * So there seems to be a `null` value passed as a widget title. I’ll add a workaround
   in the next version.
 *  Thread Starter [HansRuedi](https://wordpress.org/support/users/schwarzaufweiss/)
 * (@schwarzaufweiss)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18141845)
 * [@pputzer](https://wordpress.org/support/users/pputzer/)
 * Perfect. Thank you!
 *  Thread Starter [HansRuedi](https://wordpress.org/support/users/schwarzaufweiss/)
 * (@schwarzaufweiss)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18145347)
 * [@pputzer](https://wordpress.org/support/users/pputzer/)
 * btw: the error only happens if I de-activate (!) your plugin on an individual
   page with a sidebar.
 *  Plugin Author [pepe](https://wordpress.org/support/users/pputzer/)
 * (@pputzer)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18147074)
 * You mean in the block editor? Yes, that tracks with what I’ve seen in the code.
 *  Thread Starter [HansRuedi](https://wordpress.org/support/users/schwarzaufweiss/)
 * (@schwarzaufweiss)
 * [1 year, 6 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18148367)
 * The setting what you show for an individual post or page (this one: «wp-Typography
   ist für alle Beiträge aktiviert, außer du deaktivierst es über diesen Schalter.»).
   If it’s on, ok. If I set it to off part of the page (sidebar and footer) will«
   crash».
 *  Plugin Author [pepe](https://wordpress.org/support/users/pputzer/)
 * (@pputzer)
 * [1 year, 5 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18199671)
 * Tracked via [GitHub issue](https://github.com/mundschenk-at/wp-typography/issues/328)
   now.

Viewing 8 replies - 1 through 8 (of 8 total)

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 * 8 replies
 * 2 participants
 * Last reply from: [pepe](https://wordpress.org/support/users/pputzer/)
 * Last activity: [1 year, 5 months ago](https://wordpress.org/support/topic/fatal-error-uncaught-typeerror-38/#post-18199671)
 * Status: resolved