diff --git a/src/Orchard.Web/Core/PublishLater/ViewModels/PublishLaterViewModel.cs b/src/Orchard.Web/Core/PublishLater/ViewModels/PublishLaterViewModel.cs
index a0860ec68..67b8ff18f 100644
--- a/src/Orchard.Web/Core/PublishLater/ViewModels/PublishLaterViewModel.cs
+++ b/src/Orchard.Web/Core/PublishLater/ViewModels/PublishLaterViewModel.cs
@@ -33,7 +33,7 @@ namespace Orchard.Core.PublishLater.ViewModels {
             get { return IsPublished || ContentItem.ContentManager.Get(ContentItem.Id, VersionOptions.Published) != null; }
         }
 
-        public DateTime? VersionPublishedUtc { get { return ContentItem.As<CommonAspect>().VersionPublishedUtc; } }
+        public DateTime? VersionPublishedUtc { get { return ContentItem.As<CommonAspect>() == null ? null : ContentItem.As<CommonAspect>().VersionPublishedUtc; } }
 
         public DateTime? ScheduledPublishUtc { get; set; }
 
diff --git a/src/Orchard.Web/Core/Routable/Services/RoutableService.cs b/src/Orchard.Web/Core/Routable/Services/RoutableService.cs
index 69a3fe436..6ddaf2d02 100644
--- a/src/Orchard.Web/Core/Routable/Services/RoutableService.cs
+++ b/src/Orchard.Web/Core/Routable/Services/RoutableService.cs
@@ -63,10 +63,10 @@ namespace Orchard.Core.Routable.Services {
         public IEnumerable<IsRoutable> GetSimilarSlugs(string contentType, string slug)
         {
             return
-                _contentManager.Query(contentType).Join<RoutableRecord>()
+                _contentManager.Query().Join<RoutableRecord>()
                     .List()
                     .Select(i => i.As<IsRoutable>())
-                    .Where(routable => routable.Path.Equals(slug, StringComparison.OrdinalIgnoreCase)) // todo: for some reason the filter doesn't work within the query, even without StringComparison or StartsWith
+                    .Where(routable => routable.Path != null && routable.Path.Equals(slug, StringComparison.OrdinalIgnoreCase)) // todo: for some reason the filter doesn't work within the query, even without StringComparison or StartsWith
                     .ToArray();
         }