When doing updates to your site on the server it's always a good idea to reset your application variables to be sure all the necessary variables have been set based on the latest code. Here's how you do this...
Enter this URL variable on the end of you site address...
?resetApplication=YourDebugPassword
so it would look something like this...
http://www.yoursite.com/index.cfm?resetApplication=YourDebugPassword
This will force ColdFusion to reset your application variables.