i am not sure how you guys fixed the issue. But i encountered the same error and on investigation i found that some entries were missing for ZMMJ.
SPRO --> SAP Solution Manager --> Capabilities --> Change Request Management --> Change Request Management Framework --> Make Settings for Change Transaction Types --> Define Execution Time for Consistency Checks (ZMMJ)
i compared the entries for SMMJ and updated for ZMMJ.
The issue was resolved after the change.
In addition add auth key SMMJ_02 for Auth object B_USERSTAT to the user performing the activity.
thanks,
sid