Explanation: The attempt to add or update a server group failed because one of the server group members is the same as the one being added.
Recommended Action: Do the following, as appropriate:
Ensure that the server group member that you add does not already exist in the group.
For detailed troubleshooting information, create the admin debug log directory and retry the operation. Check the resulting debug logs. Additional debug information can be found in the log for nbemm (originator IDs 111 and 143), which uses unified logging.