To debug the cause, follow these steps:

1. Check whether the client BMR backup is successful. See Pre-requisites to create VM from backup .
2. Refer bmrd and bmrsavcfg logs to get more details about the failure.
3. If BMR backup is successful, check whether the client hostname is enlisted under the tab Bare Metal Restore Clients. If the client hostname is enlisted under Bare Metal Clients list, but not under VM conversion Clients list, refer the support matrix to validate whether the client meets the specified criteria. Refer Table:  for logs location.