Oracle Error Message
ORA-23326: object group “string”.”string” is quiesced
Reason for the Error
Either suspend_master_activity has been called before the object group has resumed normal operation or a (deferred) rpc operation was attempted while the object group was quiesced.
Solution
If suspend_master_activity has been called and a resume_master_activity request is pending, wait until it completes, and then reinvoke suspend_master_activity. Otherwise, resume database activity with the resume_master_activity call.