Ur Server Backup Having Error While Getting Full Image Backup of Windows Server 2012 R2

Error Number 1:

**|11/**17/20 12:45 |INFO |Starting unscheduled full image backup of volume “C:”…|
|—|---|—|
|11/17/20 12:45 |DEBUG |Backing up SYSVOL…|
|11/17/20 12:46 |ERROR |Backing up System Reserved (SYSVOL) partition failed. Image backup failed|
|11/17/20 12:46 |INFO |Time taken for backing up client HA-3-ESXI: 45s|
|11/17/20 12:46 |ERROR |Backup failed|

Error Number 2:

Level Time Message
Errors 11/14/20 21:42 FATAL: Writing failed after cleanup
Errors 11/14/20 21:42 Backup failed