Added more logging DiskScanProvider.CleanUp.

NzbDrone.Core/Providers/DiskScanProvider.cs

@@ -215,21 +215,30 @@ namespace NzbDrone.Core.Providers
         {
             foreach (var episodeFile in files)
             {
-                if (!_diskProvider.FileExists(episodeFile.Path))
+                try
+                {
+                    if(!_diskProvider.FileExists(episodeFile.Path))
                     {
                         Logger.Trace("File [{0}] no longer exists on disk. removing from db", episodeFile.Path);
 
                         //Set the EpisodeFileId for each episode attached to this file to 0
-                    foreach (var episode in _episodeProvider.GetEpisodesByFileId(episodeFile.EpisodeFileId))
+                        foreach(var episode in _episodeProvider.GetEpisodesByFileId(episodeFile.EpisodeFileId))
                         {
+                            Logger.Trace("Setting EpisodeFileId for Episode: [{0}] to 0");
                             episode.EpisodeFileId = 0;
                             _episodeProvider.UpdateEpisode(episode);
                         }
 
                         //Delete it from the DB
+                        Logger.Trace("Removing EpisodeFile from DB.");
                         _mediaFileProvider.Delete(episodeFile.EpisodeFileId);
                     }
                 }
+                catch (Exception ex)
+                {
+                    Logger.WarnException(ex.Message, ex);
+                }
+            }
         }