Mailbox Transport health state unhelathy

Hi  team,

I check my Exchange 2013 Mailbox server, abd the result, Mailbox Transport health set become unhealthy

and after i check into mailbox transport detail, there is some error. here the details

[PS] C:\Windows\system32>get-healthreport -server BCEJKT-MBX2-SVR | where {$_.alertvalue -ne "healthy"} | ft -auto

Server          State         HealthSet                       AlertValue LastTransitionTime  MonitorCount
------          -----         ---------                       ---------- ------------------  ------------
NotApplicable FIPS                            Unhealthy  8/6/2014 3:41:14 AM 22
NotApplicable Monitoring                      Unhealthy  8/6/2014 3:56:32 AM 9
NotApplicable MailboxTransport                Unhealthy  8/6/2014 4:11:41 AM 56
NotApplicable MSExchangeCertificateDeployment Disabled   1/1/0001 7:00:00 AM 2

Server          State           Name                 TargetResource       HealthSetName   AlertValue ServerComp
                                                                                                    onent
------          -----           ----                 --------------       -------------   ---------- ----------
NotApplicable   Mapi.Submit.Monitor  MailboxTransport     MailboxTransport Unhealthy  None

NotApplicable   MailboxDeliveryAvail                      MailboxTransport Unhealthy  None
                                abilityMonitor                            
NotApplicable   TransportDeliveryFai                      MailboxTransport Disabled   None
                                luresDeliveryStoreDr                      
                                iver560Monitor

what error means?

and, why the state  "NotApplicable" ?

Is there any services trouble (disturbed)?

Please give me details :)

Thanks 

Regards