Upgrade to 1.0.12 with eval()'d (URGENT)

I am making un upgrade from 1.0.6 to 1.0.12 and get the following error:

Error: require(/home/lawdevlaw/public_html/assets/snippets/ditto/snippet.ditto.php) [function.require]: failed to open stream: No such file or directory
Error type/ Nr.: Warning - 2
File: /home/lawdevlaw/public_html/manager/includes/document.parser.class.inc.php(814) : eval()'d code
Line: 1

Please help: http://www.law.gmu.edu/

Isn't that only saying that the Ditto snippet is not found / installed?
So uploading the Ditto files on the FTP again should fix it.

I guess you have overwritten the /assets/ folder during setup... than all the extras (snippets, plugins, etc) files would be missing now.