SourceTree crash

ERROR [2016-02-17 08:42:15,449] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,457] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,458] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,458] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,458] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,458] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,458] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,459] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,460] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,701] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,702] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,702] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,702] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,702] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,703] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,704] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,704] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,704] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:15,704] [1] [SourceTree.Bookmarks.BookmarkManager] [RegisterBookmarkEventHandlers] - RegisterAsRepositoryUpdatedEventHandler called with null repo
ERROR [2016-02-17 08:42:48,542] [1] [SourceTree.AppRoot] [HandleCrash] - Fatal error
System.NullReferenceException: Object reference not set to an instance of an object.
at SourceTree.View.ChangeSets.ChangeSetViewManager.GenerateViewModel[T](Repository repository, IRepositoryTabContainerViewModel repositoryTabContainerViewModel) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\View\ChangeSets\ChangeSetViewManager.cs:line 122
at SourceTree.ViewModel.SearchViewModel..ctor(Repository repository, IRepositoryTabContainerViewModel repositoryTabContainerViewModel, ICustomActionsManager customActionsManager, ISchedulerManager schedulerManager, IRepositoryManager repositoryManager, IAnalyticsDataManager analyticsDataManager, ITraceManager traceManager, IDispatcher dispatcher, IAccountManager accountManager, IFailureHandler failureHandler, IDvcsManager dvcsManager, IRepositoryMonitorManager repositoryMonitorManager, IFileListViewManager fileListViewManager, IFileListContainerViewManager fileListContainerViewManager, IDiffViewManager diffViewManager, IChangeSetViewManager changeSetViewManager, Boolean refreshImmediately) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\SearchViewModel.cs:line 122
at SourceTree.ViewModel.RepoTabViewModel.set_CurrentRepoView(RepoViewMode value) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\RepoTabViewModel.cs:line 359
at SourceTree.ViewModel.RepoTabViewModel..ctor(Repository r, IRepositoryTabContainerViewModel repositoryTabContainerViewModel, ICustomActionsManager customActionsManager, ISchedulerManager schedulerManager, IRepositoryManager repositoryManager, IAnalyticsDataManager analyticsDataManager, ITraceManager traceManager, IDispatcher dispatcher, IAccountManager accountManager, IFailureHandler failureHandler, IDvcsManager dvcsManager, IBookmarkManager bookmarkManager, IRepositoryMonitorManager repositoryMonitorManager, IWebManager webManager, IFileListViewManager fileListViewManager, IFileListContainerViewManager fileListContainerViewManager, IDiffViewManager diffViewManager, IChangeSetViewManager changeSetViewManager, IConfigurationManager configurationManager, IProcessDialogViewManager processDialogViewManager, INotificationsManager notificationsManager) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\RepoTabViewModel.cs:line 150
at SourceTree.ViewModel.RepositoryTabContainerViewModel.AddOrActivate(String path, RepoViewMode atView, String viewData) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\RepositoryTabContainerViewModel.cs:line 347
at SourceTree.ViewModel.RepositoryTabContainerViewModel.OpenRepoInTab(String path, RepoViewMode atView, String viewData) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\RepositoryTabContainerViewModel.cs:line 827
at SourceTree.ViewModel.Bookmarks.BookmarksPanelViewModel.OpenBookmark(BookmarkNode n) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Api.UI.Wpf\ViewModel\Bookmarks\BookmarksPanelViewModel.cs:line 582
at SourceTree.View.Bookmarks.BookmarksPanel.Treeview_OnMouseDoubleClick(Object sender, MouseButtonEventArgs e) in C:\projects\bitbucket.org\atlassian\sourcetreewin-prod\SourceTree.Ui.Bookmarks.Wpf.Mstv\View\Bookmarks\BookmarksPanel.xaml.cs:line 51
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.Controls.Control.HandleDoubleClick(Object sender, MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)