DSCC: Error during log access

hello Gurus,

Using a DSCC7 (ODSEE 11.1.3 + glassfish 3.1.1) I've this problem when I try to browse the instance logs (access,errors) via console:

============================================================================================

HTTP Status 500 -

---

type Exception report

message

descriptionThe server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Unexpected exception in session filter:null

root cause

java.lang.NullPointerException
============================================================================


any help will be much appreciated..

Thanks