Backup Stops with: V-79-57344-41488 Due to one or more errors in \\<Server>\D:

Hello,

During the backup of our File Server the Backup stops with the following error:

V-79-57344-41488 - Due to one or more errors in \\<Server>\D:, this backup cannot be used for conversion to virtual machines, Simplified Disaster Recovery (SDR), or a complete online restore.

Due to that error important files are not backup.

I tried to switch SDR off and set the registry key "Fail Jobs On Corrupt Files" to Zero without success.

Thanks in advice.