5.2a RC2: Repeatable crash in new Sermon Archives Section

When running a Guide on John 11, I get a crash in the new SermonArchives section:

2014-03-30 08:06:36.9652 32 Error OurApp Unhandled exception: System.NullReferenceException: Object reference not set to an instance of an object.
 at Libronix.DigitalLibrary.Guides.Sections.SermonArchivesSection.GetArticleDeatils(SearchResult searchResult, LabelReference labelReference, Resource resource)
 at Libronix.DigitalLibrary.Guides.Sections.SermonArchivesSection.<>c__DisplayClass10.<DoWork>b__6(SearchResult searchResult)
 at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
 at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
 at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
 at Libronix.Utility.EnumerableUtility.ToReadOnlyCollection[T](IEnumerable`1 seq)
 at Libronix.DigitalLibrary.Guides.Sections.SermonArchivesSection.<DoWork>d__14.MoveNext()
 at Libronix.Utility.Threading.AsyncWorkerTask`1.EnumMoveNext()
 at Libronix.Utility.Threading.AsyncWorkerTask`1.ContinueExecution(Object unused)
 at Libronix.Utility.Threading.GroupedThreadPool.ExecuteNextCallback(Object state)
 at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
 at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
 at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
 at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
 at System.Threading.ThreadPoolWorkQueue.Dispatch()
 at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

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