Error Setting up Server Blocks on Nginx

I am going through How To Set Up nginx Virtual Hosts (Server Blocks) on CentOS 6.

I’ve previously set up a LEMP stack and moved my web root to /var/www. That works correctly.

On step 5 of the tutorial, I get an error when restarting nginx. I run sudo systemctl restart nginx, and when I do so I get the following error: Job for nginx.service failed. See 'systemctl status nginx.service' and 'journalctl -xn' for details.

Running systemctl status nginx.service produces this message: http://hastebin.com/fuwovafeya.avrasm

I’ve double-checked that nginx has access to read and write the files referenced in the tutorial. When I remove virtual.conf, the server starts normally. Here’s my virtual.conf: http://hastebin.com/ihidaqehit.avrasm

Any thoughts on what I might be doing wrong here? Thanks in advance for your help!