Problems with vray - error 0xe000959a

Hi,

I have backup exec 2012 with vray on a windows 2003 server. I added a new vmware esxi5 server to backup, but I have the following new error:

0xe000959a - An attempt to take a snapshot of a virtual machine failed because it was unable to quiesce an application.

The phisical server is a blade connected to the san.

The vm is running but I dont think it should be a problem.

Now I have addes 2 vmware server and none worked.

Anyway what should I do ?

Thank you very much.

mediomen