Symantec Installation Manager crashes while trying to query lastModified date information via HTTP for the product listing file.

Uncaught Exception in Application
One or more errors occurred.
   [System.AggregateException @ mscorlib]
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body)
   at Symantec.Installation.Managers.ProductListingManager.GetAndLoadProductListings(ProductListingInfo mainPL)
   at Symantec.Installation.Managers.ProductListingManager.LoadCurrentProductListings()
   at Symantec.Installation.Managers.ProductListingManager.LoadAndUpdateProductListings()
   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.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

Not a valid Win32 FileTime.
   [System.ArgumentOutOfRangeException @ mscorlib]
   at System.DateTime.ToFileTimeUtc()
   at System.IO.File.SetLastWriteTimeUtc(String path, DateTime lastWriteTimeUtc)
   at Symantec.Installation.Managers.ProductListingManager.DownloadPlFile(String source, String destination)
   at Symantec.Installation.Managers.ProductListingManager.GetLatestPlFile(String source, String& pl, String& langPL)
   at Symantec.Installation.Managers.ProductListingManager.DownloadProductListing(String source, String& pl, String& langPL)
   at Symantec.Installation.Managers.ProductListingManager.GetAndLoadMainPL(ProductListingInfo pli)
   at Symantec.Installation.Managers.ProductListingManager.<>c__DisplayClass27.<GetAndLoadProductListings>b__1b(ProductListingInfo pli)
   at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.<ForWorker>b__1()
   at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
   at System.Threading.Tasks.Task.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object )

Exception logged from:
   at Symantec.Installation.Logging.LogActivity.ReportException(Int32 severity, String strMessage, String category, Exception exception, String footer)
   at Symantec.Installation.Logging.LogActivity.ReportException(String strMessage, String category, Exception exception)
   at Symantec.Installation.SimApplication.CurrentDomain_UnhandledException(Object sender, UnhandledExceptionEventArgs e)
   at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body)
   at Symantec.Installation.Managers.ProductListingManager.GetAndLoadProductListings(ProductListingInfo mainPL)
   at Symantec.Installation.Managers.ProductListingManager.LoadCurrentProductListings()
   at Symantec.Installation.Managers.ProductListingManager.LoadAndUpdateProductListings()
   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.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

","Symantec.Installation.SimApplication.CurrentDomain_UnhandledException","SymantecInstallationManager.exe","6","Errors"