Changed reference to DocumentStore, which obviously no longer exists.

prs.desktop/MainWindow.xaml.cs

@@ -1403,7 +1403,7 @@ public partial class MainWindow : IPanelHostControl
         DbFactory.Stores = CoreUtils.TypeList(
             new[]
             {
-                typeof(DocumentStore).Assembly,
+                typeof(Store<>).Assembly,
                 typeof(EquipmentStore).Assembly
             },
             myType =>