Doesn't start with System.InvalidOperationException

ERROR [2017-06-02 00:06:42,547] [1] [SourceTree.App] [OnStartup] - Failed to start
System.InvalidOperationException: Cannot set Owner property to a Window that has not been shown previously.
at System.Windows.Window.set_Owner(Window value)
at SourceTree.Notifications.NotificationsManager.ShowNotificationDialog[T](NotificationDialogWindow notificationWindow, Tuple`2 customAction, VistaTaskDialogIcon icon)
at SourceTree.Repo.RepoHandlerGitOld.CheckLargeFilesInstalled(Boolean fixAndpromptUser)
at SourceTree.Repo.RepoHandlerGitOld.CheckIfGitLfsRequiredForRepo(String path, Boolean fixAndpromptUser)
at SourceTree.Repo.RepoHandlerGitOld.CheckConfigForRepo(String path, Boolean fixAndpromptUser)
at SourceTree.ViewModel.RepositoryTabContainerViewModel.AddNew(String path, Boolean wasCloned, RepoViewMode atView, String viewData)
at SourceTree.ViewModel.RepositoryTabContainerViewModel.AddOrActivate(String path, RepoViewMode atView, String viewData)
at SourceTree.ViewModel.RepositoryTabContainerViewModel.OpenRepoInTab(String path, RepoViewMode atView, String viewData)
at SourceTree.AppRoot.SingleInstanceOpenRepo(Boolean isFirstInstance, String targetRepo, RepoViewMode view, String data)
at SourceTree.AppRoot.ProcessArguments(Boolean isFirstInstance)
at SourceTree.AppRoot.DoWindowStartupTasks()
at SourceTree.ViewModel.MainWindowViewModel..ctor(IRepositoryTabContainerViewModel repositoryTabContainerViewModel, ICustomActionsManager customActionsManager, IRepositoryManager repositoryManager, IAnalyticsDataManager analyticsDataManager, ITraceManager traceManager, IDispatcher dispatcher, IAccountManager accountManager, IFailureHandler failureHandler, IDvcsManager dvcsManager, IConfigurationManager configurationManager, IInstanceManager instanceManager, ISchedulerManager schedulerManager, IWebManager webManager, IRepositoryMonitorManager repositoryMonitorManager, ISshKeyManager sshKeyManager, INotificationsManager notificationsManager, IPreferencesManager preferencesManager)
at SourceTree.MainWindow..ctor(IRepositoryTabContainerViewModel repositoryTabContainerViewModel, ICustomActionsManager customActionsManager, IRepositoryManager repositoryManager, IAnalyticsDataManager analyticsDataManager, ITraceManager traceManager, IDispatcher dispatcher, IAccountManager accountManager, IFailureHandler failureHandler, IDvcsManager dvcsManager, IConfigurationManager configurationManager, IInstanceManager instanceManager, ISchedulerManager schedulerManager, IWebManager webManager, IRepositoryMonitorManager repositoryMonitorManager, IApplicationManager applicationManager, ISshKeyManager sshKeyManager, INotificationsManager notificationsManager, IBookmarkManager bookmarkManager, IPreferencesManager preferencesManager)
at SourceTree.AppRoot.OnStartup(StartupEventArgs e)
at SourceTree.App.OnStartup(StartupEventArgs e)