Error cmdlet Test-mailflow: "An unexpected error has occured and a Watson dump is being generated"

Hello,

When I open the Exchange (2010) Managent Shell and executed the cmd Test-mailflow, the out-put is the following:

[PS] C:\Windows\system32>Test-mailflow

RunspaceId         : 05559865-3cf6-4289-9d09-6774653f7423
TestMailflowResult : Success
MessageLatencyTime : 00:00:02.5695640
IsRemoteTest       : False
Identity           :
IsValid            : True

But I've been created a powershell script to execute this cmdlet, and when I run it, I get the following error:

"An unexpected error has occured and a Watson dump is being generated:
MapiExceptionNoAccess: Unable to list Mdb status. (hr=0x80070005ec=-2147024891)

Test-Mailflow : MapiExceptionNoAccess: Unable to list Mdb status. (hr=0x80070005ec=-2147024891)"

Could anyone help me ?