Error setting ACL on Security Group

User action:
While creating or cloning a DCE Security group, the user selected the
Permit group members to add and remove group members check box. To allow this privilege, the ACL for the DCE Security group is modified.

Meaning:
The ACL was not modified for the DCE Security group.

Corrective action:
(a) The ACL that must be modified is in the DCE Security directory. Ensure that this directory entry is present, and that it wasn't accidentally deleted.
(b) You may not have the correct authorization to create a CDS directory. Perform a DCE login using an account that has sufficient privileges to create DCE objects and retry the operation.