Issue Website Preview Settings Error

[sonics]

We try to migrate a whole plesk 12.5 windows server towards plesk onyx windows 2016. so far so good, but when we try to enable the website preview feature than we allways get the following error. it doesn't matter which optione we choose. what could be here the problem??

Error: A specified logon session does not exist. It may already have been terminated. (Exception from HRESULT: 0x80070520)
In Microsoft.Web.Administration module
Exception type: System.Runtime.InteropServices.COMException
at Microsoft.Web.Administration.Interop.IAppHostMethodInstance.Execute()

at Microsoft.Web.Administration.Binding.AddSslCertificate(Byte[] certificateHash, String certificateStoreName)

at Microsoft.Web.Administration.BindingManager.Save()

at Microsoft.Web.Administration.ServerManager.CommitChanges()

at ServerManagerFactory.commit()

at IISServerManager.commit(IISServerManager* )

at Commit common changes(WebServerAdapter::configHosting line 351)
at configHosting(4hosting.ch)(WebServerAdapter::configHosting line 476)
at configHosting(4hosting.ch)(WebServerManager::configHosting line 3022)
at execute console command --reconfigure-vhost(vconsoleapp::start line 122)
at execute E:\plesk_prog\admin\bin64\websrvmng.exe --reconfigure-vhost "--vhost-config=tmp64E3.tmp" "--config="(vconsoleapp::run line 139)
(Error code 1)
Search for related Knowledge Base articles