A critical issue was occured to my site after upgrade.
this is what’s sent by wordpress about the critical issue by mail:
Versione di WordPress 6.4.1
Tema attivo: Dispatch (versione 4.9.25)
Plugin corrente: NextGEN Gallery (versione 3.50)
Versione PHP 7.4.33
Now I’ve proceed disabling ARI Fancy Lightbox
Un errore di E_ERROR è stato causato nella linea 143 del file /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/nextgen-gallery/src/Display/LightboxManager.php. Messaggio di errore: Uncaught TypeError: Argument 2 passed to Imagely\NGG\Display\LightboxManager::register() must be an instance of Imagely\NGG\DataTypes\Lightbox, instance of stdClass given, called in /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/ari-fancy-lightbox/libraries/arisoft/core/wordpress/class-nextgen.php on line 34 and defined in /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/nextgen-gallery/src/Display/LightboxManager.php:143
Stack trace:
#0 /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/ari-fancy-lightbox/libraries/arisoft/core/wordpress/class-nextgen.php(34): Imagely\NGG\Display\LightboxManager->register()
#1 /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/ari-fancy-lightbox/includes/class-plugin.php(20): Ari\Wordpress\Nextgen::install_lightbox_v2()
#2 /web/htdocs/www.XXXXX.com/home/cms/wp-content/plugins/ari-fancy-lightbox/loader.php(33): Ari_Fancy_Lightbox\Plugin->init()
#3 /web/htdocs/www.XXXXX.com/home/cms/wp-includes/class-wp-hook.php(324): ari_fancy_lightbox_init