why the STAFProc.exe stopped working on windows

Hi, everyone

I got a issue on running LunReset of storage-cert50 certify, when test session execute power on esxia-vm3-win-lsi(server 2008 EE sp1 x64) and running STAF.

the run.log:

2013-03-07 06:08:24 UTC [Mar  7 2013 14:07:59 : VIRTUALMAC] [0] INFO: PostSetup()- VM Already powered on esxia-vm3-win-lsi.................................

and the problem detail:

  Problem signature:

  Problem Event Name: APPCRASH

  Application Name: STAFProc.exe

  Application Version: 0.0.0.0

  Application Timestamp: 4bb04cb4

  Fault Module Name: STAF.dll

  Fault Module Version: 0.0.0.0

  Fault Module Timestamp: 4bb04354

  Exception Code: c0000005

  Exception Offset: 0000000000038a92

  OS Version: 6.0.6001.2.1.0.274.10

  Locale ID: 1028

Read our privacy statement:

  http://go.microsoft.com/fwlink/?linkid=50163&clcid=0x0409

Any suggestions will help!!