Zenworks removal policy - javax.naming.NameNotFoundException

Hello,

We have Zenworks removal policy Setup to delete workstations that has not reported for the last 90 days. It is set to run every day at 10 PM. However everyday it goes trough some of the containers but then it get to this one and replies with this error and stops checking the rest of the tree. When I check our zenwsrem.log I can see that it has been like this since 2004 when we started to use removal policy.

Jan 9, 2008 10:00:07 PM Checking for unused workstations in container: UNICON USER/GROUP MANAGER.OU.OU....................

Jan 9, 2008 10:00:07 PM javax.naming.NameNotFoundException [Root exception is com.novell.service.jncp.NDSException: ccode = -601 (0xfffffda7)]

Anyone has any Idea why it spits out this error and stops?

We have NW6 SP7 on all our servers and zenworks is a clustered resource.