Fatal error: Uncaught Error: Call to undefined function send_origin_headers() in /www/wwwroot/wordpress/wp-admin/admin-post.php:23 Stack trace: #0 /www/wwwroot/wordpress/wp-includes/version.php(1): include_once() #1 /www/wwwroot/wordpress/wp-settings.php(37): require('/www/wwwroot/wo...') #2 /www/wwwroot/wordpress/wp-config.php(87): require_once('/www/wwwroot/wo...') #3 /www/wwwroot/wordpress/wp-load.php(33): require_once('/www/wwwroot/wo...') #4 /www/wwwroot/wordpress/wp-blog-header.php(10): require_once('/www/wwwroot/wo...') #5 /www/wwwroot/wordpress/index.php(51): require('/www/wwwroot/wo...') #6 {main} thrown in /www/wwwroot/wordpress/wp-admin/admin-post.php on line 23