Since I have installed this mod halfway to my 1.5 save I ve been getting spammed by this stacktrace every minute or so. Any ideas what's causing this?

System.NullReferenceException: Object reference not set to an instance of an object
[Ref DD1D510C]
at MoreFactionInteraction.MapComponent_GoodWillTrader+<>c.<IncomingIncidentDef>b__17_1 (RimWorld.IncidentDef x) [0x00000] in <1513f9c078b142fe96b440dfbb1d383a>:0
at Verse.GenCollection.RandomElementByWeight[T] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] weightSelector) [0x000c2] in <91ef6de66e7b4ba2839be0ab7f01fedf>:0
at MoreFactionInteraction.MapComponent_GoodWillTrader.IncomingIncidentDef (RimWorld.Faction faction) [0x0002b] in <1513f9c078b142fe96b440dfbb1d383a>:0
at MoreFactionInteraction.MapComponent_GoodWillTrader.MapComponentTick () [0x00060] in <1513f9c078b142fe96b440dfbb1d383a>:0
at Verse.MapComponentUtility.MapComponentTick (Verse.Map map) [0x00013] in <91ef6de66e7b4ba2839be0ab7f01fedf>:0
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)