BIP sceduling issue : Internal Exception: java.sql.SQLIntegrityConstraintViolationException: ORA-000

Need help. I am facing below issue while scheduling job on BIP 12 c :

Job submission failed : oracle.xdo.servlet.scheduler.ProcessingException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.5.v20170607-b3d05bd): org.eclipse.persistence.exceptions.DatabaseException

Internal Exception: java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (OBIPROD_BIPLATFORM.SYS_C0020606) violated

Error Code: 1

Call: INSERT INTO XMLP_SCHED_JOB (JOB_ID, BURSTING, BURSTING_PARAMETERS, CREATED, DATA_LOCATOR, DELETED, DELIVERY_DESCRIPTION, DELIVERY_PARAMETERS, END_DATE, INSTANCE_ID, ISSUER, JOB_GROUP, JOB_SET_ID, JOB_TYPE, LAST_UPDATED, NOTIFICATION_PARAMETERS, OWNER, PARENT_JOB_ID, REPORT_PARAMETERS, REPORT_URL, RUN_TYPE, SCHEDULE_CONTEXT, SCHEDULE_DESCRIPTION, SCHEDULE_PARAMETERS, SCHEDULE_SOURCE, SHARED_OPTION, START_DATE, STATUS, STATUS_DETAIL, STORAGE_TYPE, USER_DESCRIPTION, USER_JOB_NAME, XML_DATA_AVAILABLE, XML_DATA_COMPRESSED, XML_DATA_CONTENT_TYPE, XSCHURL) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)