Fatal error: Uncaught Error: Call to undefined function wp_get_server_protocol() in /var/www/wp-includes/functions.php:1460 Stack trace: #0 /var/www/wp-content/plugins/wordpress-seo/inc/sitemaps/class-sitemaps.php(284): status_header(404) #1 /var/www/wp-includes/class-wp-hook.php(324): WPSEO_Sitemaps->redirect(Object(WP_Query)) #2 /var/www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #3 /var/www/wp-includes/plugin.php(565): WP_Hook->do_action(Array) #4 /var/www/wp-includes/class-wp-query.php(1881): do_action_ref_array('pre_get_posts', Array) #5 /var/www/wp-includes/class-wp-query.php(3854): WP_Query->get_posts() #6 /var/www/wp-includes/class-wp.php(696): WP_Query->query(Array) #7 /var/www/wp-includes/class-wp.php(816): WP->query_posts() #8 /var/www/wp-includes/functions.php(1336): WP->main('') #9 /var/www/wp-blog-header.php(16): wp() #10 /var/www/index.php(17): require('/var/www/wp-blo...') #11 {main} thrown in /var/www/wp-includes/functions.php on line 1460

Fatal error: Uncaught Error: Call to undefined function wp_get_server_protocol() in /var/www/wp-includes/functions.php:1460 Stack trace: #0 /var/www/wp-includes/functions.php(3877): status_header(500) #1 /var/www/wp-includes/functions.php(3824): _default_wp_die_handler('<div class="wp-...', 'WordPress &rsaq...', Array) #2 /var/www/wp-includes/class-wp-fatal-error-handler.php(245): wp_die(Object(WP_Error), '', Array) #3 /var/www/wp-includes/class-wp-fatal-error-handler.php(156): WP_Fatal_Error_Handler->display_default_error_template(Array, Object(WP_Error)) #4 /var/www/wp-includes/class-wp-fatal-error-handler.php(60): WP_Fatal_Error_Handler->display_error_template(Array, Object(WP_Error)) #5 [internal function]: WP_Fatal_Error_Handler->handle() #6 {main} thrown in /var/www/wp-includes/functions.php on line 1460