Administrator can not add new users

[Wolverine]

What would prohibit the "System Administrator" group members from not being allowed to add users to groups?

Configuration summary:
We use a third party authentication service (custom web service).
Custom Java (.jar) file calls a the service to get the User Names.

All existing Users are properly authenticated when they open Cognos. All appropriate permissions, e.g. Reports, Queries, etc. validate properly.

However, when a member of "System Administrator" group attempts to add users, an error is received. The error is "PRS-INS-1425" and in the details the text is: "java.lang.NullPointerException". (See attachment)

Additionally, the two Administrators that could add users have left the company and their accounts have been deleted. Is there something that was 'tied' to their accounts that is missing and prohibiting us from adding users?

Any ideas and/or assistance would be greatly appreciated.

[sdf]

I'm not sure if you have stumbled upon this post from IBM.

http://www-01.ibm.com/support/docview.wss?uid=swg21342903

worth a try.

[Wolverine]

Thanks. We did look at this, but we are in a single dispatcher environment. Not sure the relevancy in our situation.