Hello, I have a droplet setup correctly running wordpress with Linux, nginx, MySQL, PHP (LEMP) stack on Ubuntu 12.10 X64 Server. I got the following error in wordpress. Warning: fopen(http://example.com/wordpress/wp-cron.php?doing_wp_cron=1361221148.57854199409284738473):failed to open stream: HTTP request failed! in /var/www/example.com/public_html/wordpress/wp-includes/class-http.php on line 921 Is this cron job related? If so how do i setup a cron job for wordpress, does it need one?