Firstly, please post questions of this nature to the user's mailing list. This list is for developers and contributors. The screen shot you link is too small to read however I would first suggest you look at the server logs for a more detailed explanation. If this does not help, then please raise a GUVNOR JIRA and provide a test case (step-by-step guide will be OK) to reproduce the error and a repository export. With kind regards, Mike On 18 November 2011 19:36, gs <gshrestha1972(a)gmail.com&gt; wrote: