similar case happened.
SMVI - " 4571207661 [update-job1 3f41f536a155d733aec9b2a1de8d07da]
ERROR com.netapp.smvi.task.vmware.util.DatastoreUtil - Failed to find datastore VM_Name "
Select VM -> N Series -> Backup and Recovery -> Backup
after that, I see under popup (「Retrieving list of backup jobs」) and Error Message on Windows Eventlog.

This job (Retrieving list of backup jobs) success and I can select VSC backup job.
Why Error messeges occured? How operarion DatastoreUtil do ?
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[VSC]
VSC : version 4.0
Backup and Recovery Version : 3.0.5 (Build : 1343)
[VMware]
VMware vCenter Server : version 5.0.0 (Build : 755629)
vSphere Client : version 5.0.0 (Build : 755629)