I've been researching how to show posts in a category alphabetically from my main menu, instead of chronologically. I found a solution on a 6 month old thread that works perfectly on my localhost. It's exactly what I have been looking for. The problem is, when I use the same code on my production site I get the white screen.
Thread is here; Sort Posts Alphabetically.
I've deactivated all my plugins. I have identical functions.php file on my localhost and production site. Using child theme, Twenty Twelve. I would appreciate some suggestions about what to look at to make it work. My live site is in 'Maintenance Mode' at the moment. I disabled it earlier, but I'm running it again.