🐞 Bug Report: WP locks up when trying to update a theme (from wp.org)

[sterndata]

Problem went away after deactivating the plugin

WordPress version 6.9
Active theme: SDS TwentyTwentyOne Child (version 1.4)
Current plugin: FAIR Connect - Federated and Independent Repositories (version 1.2.2)
PHP version 8.4.16

Error Details

An error of type E_ERROR was caused in line 393 of the file /var/www/stevenstern.me/wordpress/wp-content/plugins/fair-plugin/inc/packages/namespace.php. Error message: Uncaught TypeError: FAIR\Packages\pick_artifact_by_lang(): Argument #1 ($artifacts) must be of type array, null given, called in /var/www/stevenstern.me/wordpress/wp-content/plugins/fair-plugin/inc/packages/namespace.php on line 730 and defined in /var/www/stevenstern.me/wordpress/wp-content/plugins/fair-plugin/inc/packages/namespace.php:393
Stack trace:
#0 /var/www/stevenstern.me/wordpress/wp-content/plugins/fair-plugin/inc/packages/namespace.php(730): FAIR\Packages\pick_artifact_by_lang()
#1 [internal function]: {closure:FAIR\Packages\cache_did_for_install():729}()
#2 /var/www/stevenstern.me/wordpress/wp-content/plugins/fair-plugin/inc/packages/namespace.php(727): array_find_key()
#3 /var/www/stevenstern.me/wordpress/wp-includes/class-wp-hook.php(341): FAIR\Packages\cache_did_for_install()
#4 /var/www/stevenstern.me/wordpress/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#5 /var/www/stevenstern.me/wordpress/wp-admin/includes/class-wp-upgrader.php(817): apply_filters()
#6 /var/www/stevenstern.me/wordpress/wp-admin/includes/class-plugin-upgrader.php(135): WP_Upgrader->run()
#7 /var/www/stevenstern.me/wordpress/wp-admin/includes/ajax-actions.php(4497): Plugin_Upgrader->install()
#8 /var/www/stevenstern.me/wordpress/wp-includes/class-wp-hook.php(341): wp_ajax_install_plugin()
#9 /var/www/stevenstern.me/wordpress/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#10 /var/www/stevenstern.me/wordpress/wp-includes/plugin.php(522): WP_Hook->do_action()
#11 /var/www/stevenstern.me/wordpress/wp-admin/admin-ajax.php(192): do_action()
#12 {main}
thrown

[javiercasares]

Same problem here, updating a plugin.

2026/01/05 07:14:53 [error] 1931#1931: *238827 FastCGI sent in stderr: "quest_failed' => [...]]; public $error_data = []; protected $additional_data = [] }, 'did:plc:e3rm6t7cspgpzaf47kn3nnsl') /webs/example.com/wp-includes/compat.php:510; PHP message: PHP Fatal error:  Uncaught TypeError: FAIR\Packages\pick_artifact_by_lang(): Argument #1 ($artifacts) must be of type array, null given, called in /webs/example.com/wp-content/plugins/fair-plugin/inc/packages/namespace.php on line 730 and defined in /webs/example.com/wp-content/plugins/fair-plugin/inc/packages/namespace.php:393
Stack trace:
#0 /webs/example.com/wp-content/plugins/fair-plugin/inc/packages/namespace.php(730): FAIR\Packages\pick_artifact_by_lang()
#1 /webs/example.com/wp-includes/compat.php(510): FAIR\Packages\{closure}()
#2 /webs/example.com/wp-content/plugins/fair-plugin/inc/packages/namespace.php(727): array_find_key()
#3 /webs/example.com/wp-includes/class-wp-hook.php(341): FAIR\Packages\cache_did_for_install()
#4 /webs/example.com/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#5 /webs/example.com/wp-admin/includes/class-wp-upgrader.php(817): apply_filters()
#6 /webs/example.com/wp-admin/includes/class-plugin-upgrader.php(135): WP_Upgrader->run()
#7 /webs/example.com/wp-admin/update.php(180): Plugin_Upgrader->install()
#8 {main}
  thrown in /webs/example.com/wp-content/plugins/fair-plugin/inc/packages/namespace.php on line 393" while reading response header from upstream, client: 91.126.240.252, server: example.com, request: "POST /wp-admin/update.php?action=upload-plugin HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/promoamigo82.sock:"