Redmine

I moved our redmine installation from one server to another. Simply copied the files, dumped the MySQL database and then brought it up on a new box. Everything seems to work correctly with the exception that when I go to add files to a ticket, to the files directory of a project, or delete files, I get an internal error to contact the redmine administrator. The following line appears in the apache access log:

68.119.57.54 - - [30/Sep/2010:10:18:43 -0400] "POST /attachments/destroy/96 HTTP/1.1" 500 1049 "http://redmine.textilemanagement.com/projects/synoffice/files" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3"

I am running Redmine 0.9.3 stable on Ubuntu 10 LTS. If there is any additional information I can provide to help me find a solution to this, please let me know. Thanks.