DB purge fails removing topology requests

2020-07-23 16:53:55,265 ERROR [main] CleanupServiceImpl:85 - Running the purge process for DAO: [org.apache.ambari.server.orm.dao.RequestDAO$$EnhancerByGuice$$f11e85aa@1e734eee] failed with: {}
java.lang.IllegalArgumentException: Object: null is not a known Entity type.
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.remove(EntityManagerImpl.java:571)
	at org.apache.ambari.server.orm.dao.TopologyRequestDAO.remove(TopologyRequestDAO.java:78)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:118)
	at org.apache.ambari.server.orm.dao.TopologyRequestDAO.removeByPK(TopologyRequestDAO.java:83)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:118)
	at org.apache.ambari.server.orm.dao.RequestDAO.cleanup(RequestDAO.java:420)
	at org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:128)
	at org.apache.ambari.server.cleanup.CleanupServiceImpl.cleanup(CleanupServiceImpl.java:82)
	at org.apache.ambari.server.cleanup.CleanupDriver.main(CleanupDriver.java:90)