I was working on a website yesterday and all was well. I was porting it to use Smarty. I had one last page to change which didn't require any testing since the Smarty template file didn't really do much. I saved my work, closed everything out, and left. Earlier today, I checked the site and found that it has gone haywire. It is displaying an incorrect template for all but one page. I never changed anything with my server setup so that can't be the problem. Pages that had previously worked flawlessly no longer work. I've quintuple-checked my work and can't see what's going wrong. In order to not post every single thing I have, I will share any code of mine that you would like to take a look at. Just leave a comment, and I will make an edit. Any ideas what could be going wrong? I am using Smarty 3.1.8 and PHP 5.3.3.
Live site