Application.Thread Exception error

[VIPvegas]

This is a new one for me. Only about the second time I've used song manager. Tried to organize artist by subfolder now I'm getting this error. Any help is appreciated.

 

 

<ERROR> Application.ThreadException
Source: CustomsForgeSongManager
Target: System.String get_ArtistTitleAlbum()
System.NullReferenceException: Object reference not set to an instance of an object.
   at CustomsForgeSongManager.DataObjects.SongData.get_ArtistTitleAlbum()
   at CustomsForgeSongManager.UControls.Duplicates.<>c.<PopulateDuplicates>b__16_15(SongData x)
   at System.Linq.Lookup`2.Create[TSource](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
   at System.Linq.GroupedEnumerable`3.GetEnumerator()
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at System.Linq.Enumerable.<SelectManyIterator>d__17`2.MoveNext()
   at System.Linq.Enumerable.<UnionIterator>d__67`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at CustomsForgeSongManager.UControls.Duplicates.PopulateDuplicates(Boolean findDupPIDs)
   at CustomsForgeSongManager.UControls.Duplicates.UpdateToolStrip()
   at CustomsForgeSongManager.Forms.frmMain.tcMain_SelectedIndexChanged(Object sender, EventArgs e)
   at System.Windows.Forms.TabControl.OnSelectedIndexChanged(EventArgs e)
   at System.Windows.Forms.TabControl.WmSelChange()
   at System.Windows.Forms.TabControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

 

[VIPvegas]

Any help or guidance would be appreciated my cdlc load in game but the Song Manager errors when going to setlist or duplicates tab.