The error message is strange but I think the issue is clear now - with NMM 9 manual backups are not allowed/possible any longer. From the Release Notes:
Unsupported NetWorker features
The following NetWorker features are not supported in NMM:
- Localization (L10N)
- Probe based backups
- Adhoc or manual VSS backups
- AES encryption for Hyper-V Server and Exchange Server backups
Every body i was able to backup , i was able to backup from networker server but again during recover from server sql backup not showing .... by the way what is latest stable code in 9.x release ?
bingo; is this true also for VDI? Because list you gave explicitly says VSS which is not the same as VDI. Further, since NMM can integrate with SQL Mgmt Studio, one can run backup and restore from there so I would be surprised that you can't do the same (for VDI) from SQL user.
EMC555 the screenshot you showed does not show VDI being used so backup you did is not SQL one related (it was file system backup).