Fatal error: Uncaught Error: Class "WP_Sitemaps_Provider" not found in /users/bx-mila/www/wordpress/wp-includes/sitemaps/providers/class-wp-sitemaps-users.php:17 Stack trace: #0 {main} thrown in /users/bx-mila/www/wordpress/wp-includes/sitemaps/providers/class-wp-sitemaps-users.php on line 17