Hyper-V backup don't start

Hi!

I have migrated to Networker 9.1.  I have installed  lgtoclnt-9.1.0.2.msi and NWVSS.msi, but ConfigChecker sad me about one error: HYPERV_POWERSHEL ......

About Windows Cluster:  I use Windows Core Hyper-V 2012R2, I have Cluster an CSV.

I have been using this NW client parameters:

Save Set: APPLICATIONS:\Microsoft Hyper-V\SCVMM In-DII-TC Resources

Schedule: Full Every day

remoteuser: username@local

backup command: nsrnmmsv

application information:

NSR_SNAP_TYPE=vss

NSR_FEDERATED_PSOL=DC-CH2B1-HV.local,DC-CH1B1-HV.local,DC-CH2B3-HV.local,DC-CH1B2-HV.local,DC-CH1B7-HV.local,DC-CH2B7-HV.local,DC-CH2B2-HV.local,DC-CH1B5-HV.local

NSR_FEDERATED_BACKUP=yes

NSR_VSS_FULL_BACKUP=yes

Remote Access:

SYSTEM@DC-CH1B1-HV.local

SYSTEM@DC-CH1B7-HV.local

SYSTEM@DC-CH2B3-HV.local

SYSTEM@DC-CH1B2-HV.local

SYSTEM@DC-CH1B5-HV.local

SYSTEM@DC-CH2B1-HV.local

SYSTEM@DC-CH2B2-HV.local

SYSTEM@DC-CH2B7-HV.local

Now I have problem with backup Virtual Machine:

107092:nsrnmmsv: Version information for C:\Program Files\EMC NetWorker\nsr\bin\nsrnmmsv.exe: Original file name: nsrnmmsv.exe Version: 9.1.0 (ntx64) Comments: Supporting Microsoft Volume Shadow Copy Service

127159:nsrnmmsv: Created temp path C:\Program Files\EMC NetWorker\nsr\tmp\nmm\2017-02-21_12-40-44_7576-4196\.

nsrnmmsv: multithreaded save set parallelism==4

133296 1487673646 0 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR info 26 Starting backup operation. 0

115735 1487673646 0 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR info 118 This is a federated backup for Hyper-V CSV. \n Non-CSV VMs and application save sets will be excluded from the backup. 0

Could not find file 'Disk 5 16384.00 GB Bus 0 Lun 4 Target 0'.
116036 1487673681 0 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR info 39 The list of Modified Proxy Servers are: 0

DC-CH2B7-HV.local
144023 1487673681 3 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR error 26 Hyper-V CSV backup failed  0

144023 1487673681 3 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR error 26 Hyper-V CSV backup failed  0

139527 1487673683 3 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR error 51 The backup operation did not complete successfully. 0

102333 1487673683 3 0 0 4196 7576 0 dc-ch2b1-hv.local nsrnmmsv NSR error 21 Exiting with failure. 0

Removing files under temp path C:\Program Files\EMC NetWorkersr\tmpmm\2017-02-21_12-40-44_7576-4196.
--- Job Indications ---
Internal error. Save job failed, please refer to log file for more information.
DC-HV-Cluster.local:pseudo_saveset: retried 1 times.