Error during closing application

When you want exit Architect, it prints this error
(Archtect version 4920)

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Error
Cannot refresh object that has not been persisted!
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Cannot refresh object that has not been persisted!
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 Stack trace
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   at Origam.DA.Service.FileChangesWatchDog.Stop()
   at Origam.Workbench.Services.ServiceManager.UnloadService(IWorkbenchService service)
   at Origam.OrigamEngine.OrigamEngine.UnloadConnectedServices()
   at OrigamArchitect.frmMain.Disconnect()
   at OrigamArchitect.frmMain.frmMain_Closing(Object sender, CancelEventArgs e)
   at System.Windows.Forms.Form.OnClosing(CancelEventArgs e)
   at OrigamArchitect.frmMain.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

===============================================
====== ORIGAM System Information
===============================================
Local Time: 2018-08-16T12:52:30.2285352+02:00
XSLT Date: 2018-08-16T00:00:00.0000000+02:00

Model Repository Information
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Model Format Version: 5.0.0

Loaded Packages (Model Version/Deployed Version)
===============================================
Model not loaded.

Activated Features
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Model not loaded.

Computer Information
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Current Directory: C:\Program Files (x86)\ORIGAM\ORIGAM Architect (master)
Machine Name: WIN-CB660QDL99K
OS Version: Microsoft Windows NT 6.2.9200.0
Product Version: 0.0.0.4920
CLR Version: 4.0.30319.42000
System.data.dll Version: 4.7.3081.0 built by: NET472REL1
Current Culture: English (United States)
Current Input Language: Spojené království
Memory Working Set: 299151360
System Directory: C:\Windows\system32
Executable Path: C:\Program Files (x86)\ORIGAM\ORIGAM Architect (master)\OrigamArchitect.exe
Application Data Path: C:\Users\pc\AppData\Roaming
Startup Path: C:\Program Files (x86)\ORIGAM\ORIGAM Architect (master)

Authentication Information
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Identity Name: WIN-CB660QDL99K\pc
Identity Authentication Type: NTLM
Profile Provider: Origam.Security.OrigamProfileProvider
The following exception occured while loading current user's profile: 
Could not load user profile.

1. You were logged out after a long inactivity - try to sign in again.
2. User account is not assigned in the system - please contact your administrator.

Role Information
===============================================
Authorization Provider: Origam.Security.OrigamDatabaseAuthorizationProvider

Resource Management Information
===============================================
Could not get resource information. The following error occured:
Object reference not set to an instance of an object.

===============================================
====== Service Information
===============================================
Model is not loaded. Services are not available.

Build 4930 - nemohu zopakovat.

již se nezobrazuje. verze 4931