Synthetic Backup Is Not Supported (code 1531)
Files in Long-term Storage Were Detected (code 1532)
Checkpoint Creation Failed (code 1915)
Restore Points Creation Time Mismatch (code 2525)
VSS Error: Access Denied (8194)
Unable to Back up On-Demand Files (code 1633)
Unable to Back up On-Demand Files (code 1634)