Fatal error: Uncaught TypeError: get_object_vars(): Argument #1 ($object) must be of type object, string given in /var/www/wordpress.pre/wp-includes/class-wp-site.php:195 Stack trace: #0 /var/www/wordpress.pre/wp-includes/class-wp-site.php(195): get_object_vars('\x00\x00\x00\x02\x17\x08stdClass\x14...') #1 /var/www/wordpress.pre/wp-includes/class-wp-site.php(181): WP_Site->__construct('\x00\x00\x00\x02\x17\x08stdClass\x14...') #2 /var/www/wordpress.pre/wp-includes/ms-site.php(318): WP_Site::get_instance(1) #3 /var/www/wordpress.pre/wp-includes/class-wp-site-query.php(387): get_site(1) #4 /var/www/wordpress.pre/wp-includes/class-wp-site-query.php(254): WP_Site_Query->get_sites() #5 /var/www/wordpress.pre/wp-includes/ms-site.php(421): WP_Site_Query->query(Array) #6 /var/www/wordpress.pre/wp-includes/ms-load.php(255): get_sites(Array) #7 /var/www/wordpress.pre/wp-includes/ms-load.php(318): get_site_by_path('pre.wirlernenon...', '/sitemap.xml', 1) #8 /var/www/wordpress.pre/wp-includes/ms-settings.php(72): ms_load_current_site_and_network('pre.wirlernenon...', '/sitemap.xml', true) #9 /var/www/wordpress.pre/wp-settings.php(141): require('/var/www/wordpr...') #10 /var/www/wordpress.pre/wp-config.php(155): require_once('/var/www/wordpr...') #11 /var/www/wordpress.pre/wp-load.php(50): require_once('/var/www/wordpr...') #12 /var/www/wordpress.pre/wp-blog-header.php(13): require_once('/var/www/wordpr...') #13 /var/www/wordpress.pre/index.php(17): require('/var/www/wordpr...') #14 {main} thrown in /var/www/wordpress.pre/wp-includes/class-wp-site.php on line 195