LWM Error Log 10-3-20

Exception filling tab RimWorld.ITab_Storage: System.NullReferenceException: Object reference not set to an instance of an object
  at Verse.ThingDef.get_DescriptionDetailed () [0x000d2] in <d72310b4d8f64d25aee502792b58549f>:0
  at (wrapper dynamic-method) Verse.Listing_TreeThingFilter.Verse.Listing_TreeThingFilter.DoThingDef_Patch1(Verse.Listing_TreeThingFilter,Verse.ThingDef,int,Verse.Map)
  at Verse.Listing_TreeThingFilter.DoCategoryChildren (Verse.TreeNode_ThingCategory node, System.Int32 indentLevel, System.Int32 openMask, Verse.Map map, System.Boolean isRoot) [0x0010f] in <d72310b4d8f64d25aee502792b58549f>:0
  at (wrapper dynamic-method) Verse.ThingFilterUI.Verse.ThingFilterUI.DoThingFilterConfigWindow_Patch0(UnityEngine.Rect,UnityEngine.Vector2&,Verse.ThingFilter,Verse.ThingFilter,int,System.Collections.Generic.IEnumerable`1<Verse.ThingDef>,System.Collections.Generic.IEnumerable`1<Verse.SpecialThingFilterDef>,bool,System.Collections.Generic.List`1<Verse.ThingDef>,Verse.Map)
  at RimWorld.ITab_Storage.FillTab () [0x001e6] in <d72310b4d8f64d25aee502792b58549f>:0
  at Verse.InspectTabBase+<>c__DisplayClass14_0.<DoTabGUI>b__0 () [0x00039] in <d72310b4d8f64d25aee502792b58549f>:0
Verse.Log:Error(String, Boolean)
Verse.Log:ErrorOnce(String, Int32, Boolean)
Verse.<>c__DisplayClass14_0:<DoTabGUI>b__0()
Verse.ImmediateWindow:DoWindowContents(Rect)
Verse.Window:InnerWindowOnGUI(Int32)
UnityEngine.GUI:CallWindowDelegate(WindowFunction, Int32, Int32, GUISkin, Int32, Single, Single, GUIStyle)

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Word wrap was false at end of frame.
Verse.Log:Error(String, Boolean)
Verse.Log:ErrorOnce(String, Int32, Boolean)
Verse.Text:StartOfOnGUI()
Verse.UIRoot:Verse.UIRoot.UIRootOnGUI_Patch2(UIRoot)
RimWorld.UIRoot_Play:RimWorld.UIRoot_Play.UIRootOnGUI_Patch1(UIRoot_Play)
Verse.Root:Verse.Root.OnGUI_Patch1(Root)


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Mouse position stack is not empty. There were more calls to BeginScrollView than EndScrollView. Fixing.
Verse.Log:Error(String, Boolean)
Verse.Widgets:EnsureMousePositionStackEmpty()
Verse.Root:Verse.Root.Update_Patch1(Root)
Verse.Root_Play:Verse.Root_Play.Update_Patch1(Root_Play)