I get following error when trying to backup my VM´s after reinstall of ESXi and restore of Thinware backup server. My Thinware backup server is a VM and backed up just with Thinware. I use VM converter for restore and do it as administrator.

"Unable to complete backup. Unable to retrieve virtual machine ID. Error while creating 'virtualmachine' file. WARNING - POTENTIAL SECURITY BREACH!"

I get the error every time I reinstall ESXi and only scratch install of backup server solves the problem. I have SSH enabled.

Whats´s the problem ? What kind of security issue is it ?

My log:
========= LOG START ========
Thinware(R) vBackup(R)
Version: 0.3.1.2638 (Version 0.3, Update 1) - Expires: 2014-01-31
Copyright (c) 2009-2013 Thinware, Inc. All rights reserved.
Visit us at: www.vbackup.com
Process Started: 2013-11-01 21:02:45
Application Settings:
- SMTP Server =
- SMTP Username =
- SMTP Password =
- SMTP From Address =
- Notification Recipients =
- VMware Virtual Disk Development Kit Install Path = C:\Program Files (x86)\VMware\VMware Virtual Disk Development Kit
Execution Arguments:
- Virtual Machine = vm943
- Server = 192.168.0.8:22
- Server Username = root
- Server Password = ********
- Job = backup
- Job Type = Backup-Image-SSH
- Backup Root = X:\
- Disk Exclusion = None
- Backups to Keep = 3
- Quiesce Guest File System = True
- Create Snapshot Task Timeout = 15
- Remove Snapshot Task Timeout = 15
- Encrypt Temporary Password File = False
- Compression Level = Advanced
- Maximum Log Size = 1024
- Backup Type = Image-Full
- Debug = after
SMTP server not provided, e-mail notification is disabled.
Server Platform: VMware ESXi 5.1.0 799733
Virtual Machine Guest OS: Microsoft Windows 7 (64-bit)
Backup Folder: X:\\vm943
Backup: 131101_210349
No existing temporary snapshots found.
E Unable to complete backup. Unable to retrieve virtual machine ID. Error while creating 'virtualmachine' file. WARNING - POTENTIAL SECURITY BREACH!.
Backup data folder deleted in cleaning up after job failure.
Process Completed: 2013-11-01 21:03:53
Elapsed Time: 1 minute and 8 seconds

Nice... Thanks for the help !