NVP/vProxy: Unable to start backup on vProxy. Error while parsing JSON object "BackupResponse": "Object item not found: QuiesceTimeout"

MM/DD/YYYY HH:MM:SS Action backup vmware-vproxy 'Backup' has initialized as 'vproxysave job' with job id 390781
MM/DD/YYYY HH:MM:SS Saving the backup data in the pool 'vproxy_backups'.
MM/DD/YYYY HH:MM:SS Saving the backup data in the pool 'vproxy_backups'.
MM/DD/YYYY HH:MM:SS Received the media management binding information on the host 'storagenode001.testlab.dellemc.com'.
MM/DD/YYYY HH:MM:SS Received the media management binding information on the host 'storagenode001.testlab.dellemc.com'.
MM/DD/YYYY HH:MM:SS Connected to the nsrmmd process on the host 'storagenode001.testlab.dellemc.com'.
MM/DD/YYYY HH:MM:SS Connected to the nsrmmd process on the host 'storagenode001.testlab.dellemc.com'.
MM/DD/YYYY HH:MM:SS jumpbox01: Perform incremental backup.
MM/DD/YYYY HH:MM:SS jumpbox01: Using backup mode 'VSS'.
MM/DD/YYYY HH:MM:SS jumpbox01: Perform incremental backup.
MM/DD/YYYY HH:MM:SS jumpbox01: Using backup mode 'VSS'.
MM/DD/YYYY HH:MM:SS jumpbox01: Unable to start backup on vProxy 'proxy005.testlab.dellemc.com': Error while parsing JSON object "BackupResponse": "Object item not found: QuiesceTimeout" on at 1-94: {"Config":{"SessionId":"07b5e1c5-b195-46ca-879f-8e01a7382504","LogTag":"@(#) Build number: 163","LogLevel":"TRACE","IdleTimeout":300,"AcceptedLanguage":"en","TransportModeRequested":"hotadd","Parallelism":1,"UseCbt":true,"VimServerRef":{"HostName":"vcenter001.testlab.dellemc.com","TcpPort":0,"UserName":"dellemclab\\testuser01","UserPassword":"********","ThumbPrint":""},"VmSpec":{"Name":"jumpbox01","VmMoref":"vm-6905","VirtualDisks":[{"Label":"Hard disk 1","Key":2000},{"Label":"Hard disk 2","Key":2016},{"Label":"Hard disk 3","Key":2017},{"Label":"Hard disk 4","Key":2032},{"Label":"Hard disk 5","Key":2048},{"Label":"Hard disk 6","Key":2001},{"Label":"Hard disk 7","Key":2002}],"CustomFieldName":"Last EMC vProxy Backup","CustomFieldValue":"Backup Server=networkersrv001, Policy=VMs01, Workflow=1100PM_VMs, Action=Backup, JobId=390785"},"SnapshotSpec":{"Name":"NetWorker Backup Snapshot","Description":"Snapshot is created as part of protecting this VM by EMC NetWorker VProxy.","Quiesce":false,"DumpMemory":false,"RemoveAll":false,"Consolidate":false},"TargetSpec":{"DeviceType":"DataDomain","HostName":"dd01.testlab.dellemc.com","UserName":"ddboost","UserPassword":"********","BackupMode":"VSS","BackupPath":"networkersrv001/VMs01//networkersrv001/VMs01/06/96/d2625095-00000006-7e70c5cb-5a70c5cb-07835000-457c8c56","PreviousBackupPath":"/networkersrv001/VMs01/96/50/6f232198-00000006-9e65e05a-5a65e05a-59645000-457c8c56","CurrentBackupPath":"/networkersrv001/VMs01/active/d2625095-00000006-7e70c5cb-5a70c5cb-07835000-457c8c56","VBABackup":{"VBABackupPath":"","VBATempPath":""}},"ZeroFillUnusedSectors":false,"AutoEnableCbt":true,"AutoRepairCbt":true,"FallbackCbtThreshold":0,"FallbackTransportMode":"","DeprecatedREST":false,"ReadBufferMB":0,"WriteBufferKB":0,"BufferCount":0},"Actions":{"ChangeSession":"","DeleteSession":"/api/v1/BackupVmSessions/07b5e1c5-b195-46ca-879f-8e01a7382504","CancelActivity":"/api/v1/BackupVmSessions/07b5e1c5-b195-46ca-879f-8e01a7382504/activity","GetSession":"/api/v1/Backu .
MM/DD/YYYY HH:MM:SS jumpbox01: Unable to start backup on vProxy 'proxy005.testlab.dellemc.com': Error while parsing JSON object "BackupResponse": "Object item not found: QuiesceTimeout" on at 1-94: {"Config":{"SessionId":"fbd227a3-aeff-4870-8043-ce13d21c9c6e","LogTag":"@(#) Build number: 163","LogLevel":"TRACE","IdleTimeout":300,"AcceptedLanguage":"en","TransportModeRequested":"hotadd","Parallelism":1,"UseCbt":true,"VimServerRef":{"HostName":"vcenter001.testlab.dellemc.com","TcpPort":0,"UserName":"dellemclab\\testuser01","UserPassword":"********","ThumbPrint":""},"VmSpec":{"Name":"jumpbox01","VmMoref":"vm-76906","VirtualDisks":[{"Label":"Hard disk 1","Key":2000},{"Label":"Hard disk 2","Key":2016},{"Label":"Hard disk 3","Key":2017},{"Label":"Hard disk 4","Key":2032},{"Label":"Hard disk 5","Key":2048},{"Label":"Hard disk 6","Key":2001},{"Label":"Hard disk 7","Key":2002}],"CustomFieldName":"Last EMC vProxy Backup","CustomFieldValue":"Backup Server=networkersrv001, Policy=VMs01, Workflow=1100PM_VMs, Action=Backup, JobId=390784"},"SnapshotSpec":{"Name":"NetWorker Backup Snapshot","Description":"Snapshot is created as part of protecting this VM by EMC NetWorker VProxy.","Quiesce":false,"DumpMemory":false,"RemoveAll":false,"Consolidate":false},"TargetSpec":{"DeviceType":"DataDomain","HostName":"dd01.testlab.dellemc.com","UserName":"ddboost","UserPassword":"********","BackupMode":"VSS","BackupPath":"networkersrv001/VMs01//networkersrv001/VMs01/79/96/6cb308b3-00000006-7d70c5cb-5a70c5cb-07845000-457c8c56","PreviousBackupPath":"/networkersrv001/VMs01/89/11/fe541b04-00000006-9f65e05a-5a65e05a-59635000-457c8c56","CurrentBackupPath":"/networkersrv001/VMs01/active/6cb308b3-00000006-7d70c5cb-5a70c5cb-07845000-457c8c56","VBABackup":{"VBABackupPath":"","VBATempPath":""}},"ZeroFillUnusedSectors":false,"AutoEnableCbt":true,"AutoRepairCbt":true,"FallbackCbtThreshold":0,"FallbackTransportMode":"","DeprecatedREST":false,"ReadBufferMB":0,"WriteBufferKB":0,"BufferCount":0},"Actions":{"ChangeSession":"","DeleteSession":"/api/v1/BackupVmSessions/fbd227a3-aeff-4870-8043-ce13d21c9c6e","CancelActivity":"/api/v1/BackupVmSessions/fbd227a3-aeff-4870-8043-ce13d21c9c6e/activity","GetSession":"/api/v1/Backu .
MM/DD/YYYY HH:MM:SS Final Summary of VMs: 
MM/DD/YYYY HH:MM:SS 0 canceled backups
MM/DD/YYYY HH:MM:SS 2 failed backups
MM/DD/YYYY HH:MM:SS 0 successful backups
MM/DD/YYYY HH:MM:SS 0 waiting backups
MM/DD/YYYY HH:MM:SS 0 running backups
MM/DD/YYYY HH:MM:SS 0 savesets output to next action
MM/DD/YYYY HH:MM:SS Action has finished with failures.
MM/DD/YYYY HH:MM:SS Action backup vmware-vproxy 'Backup' with job id 390781 is exiting with status 'failed', exit code 1Thomas