Sophos Enterprise Console not open with out showing any problem

Hi,

I have a problem after upgrading our Sophos Management Console to 5.5.2. 

Our database Server already upgraded to 552. 

I found an error on the IdentityService.logs

2020-09-30 17:05:39,066 [89] [(null)] WARN {SophosManagementSecurity.LogWarning} ==> The SEC permissions cannot be retrieved for the user : Domain\sophosmanagement
2020-09-30 17:05:39,066 [89] [(null)] WARN {SophosManagementSecurity.LogWarning} ==> Cannot communicate with management service [Reason = System.Runtime.InteropServices.COMException (0x800706BA): The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
at ManagementServiceLib.CoreServicesClass.getSubEstates(String username)
at Sophos.Management.Security.RoleBaseAdministrationAdaptor.<>c__DisplayClass7_0.<FetchAndVerifyUserSubEstate>b__0()
at Sophos.Management.Security.RoleBaseAdministrationAdaptor.InvokeManagementServiceOperation[T](Func`1 func, String machineUserName, Int32 numberOfRetries)], it might have been restarted, hence re-creating management service.
2020-09-30 17:05:39,066 [89] [(null)] WARN {SophosManagementSecurity.LogWarning} ==> System.Runtime.InteropServices.COMException (0x800706BA): The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
at ManagementServiceLib.CoreServicesClass.getSubEstates(String username)
at Sophos.Management.Security.RoleBaseAdministrationAdaptor.<>c__DisplayClass7_0.<FetchAndVerifyUserSubEstate>b__0()
at Sophos.Management.Security.RoleBaseAdministrationAdaptor.InvokeManagementServiceOperation[T](Func`1 func, String machineUserName, Int32 numberOfRetries)
2020-09-30 17:05:39,066 [89] [(null)] INFO {SophosManagementSecurity.LogInformation} ==> Retrying the management service function for 1 time/times

Teddy