at HarmonyLib.CodeInstruction.LoadField (System.Type type, System.String name, System.Boolean useAddress) [0x00017] in <255414689d344b1385ae719f6cce8c55>:0
at VSE.Expertise.ExpertisePatches+<ExpertiseTitleTranspiler>d__4.MoveNext () [0x00167] in <52c6ce6e3c6548d19de15b94cc0e2afc>:0
at System.Collections.Generic.List`1[T]..ctor (System.Collections.Generic.IEnumerable`1[T] collection) [0x00077] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Linq.Enumerable.ToList[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00018] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at HarmonyLib.CodeTranspiler.GetResult (System.Reflection.Emit.ILGenerator generator, System.Reflection.MethodBase method) [0x00051] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.MethodBodyReader.FinalizeILCodes (HarmonyLib.Emitter emitter, System.Collections.Generic.List`1[T] transpilers, System.Collections.Generic.List`1[T] endLabels, System.Boolean& hasReturnCode) [0x0014a] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.MethodCopier.Finalize (HarmonyLib.Emitter emitter, System.Collections.Generic.List`1[T] endLabels, System.Boolean& hasReturnCode) [0x00000] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.MethodPatcher.CreateReplacement (System.Collections.Generic.Dictionary`2[System.Int32,HarmonyLib.CodeInstruction]& finalInstructions) [0x002be] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.PatchFunctions.UpdateWrapper (System.Reflection.MethodBase original, HarmonyLib.PatchInfo patchInfo) [0x00057] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.PatchProcessor.Patch () [0x000fc] in <255414689d344b1385ae719f6cce8c55>:0

at HarmonyLib.Harmony.Patch (System.Reflection.MethodBase original, HarmonyLib.HarmonyMethod prefix, HarmonyLib.HarmonyMethod postfix, HarmonyLib.HarmonyMethod transpiler, HarmonyLib.HarmonyMethod finalizer) [0x00028] in <255414689d344b1385ae719f6cce8c55>:0
at VSE.Expertise.ExpertisePatches.Do (HarmonyLib.Harmony harm) [0x00146] in <52c6ce6e3c6548d19de15b94cc0e2afc>:0
at VSE.SkillsMod..ctor (Verse.ModContentPack content) [0x00023] in <52c6ce6e3c6548d19de15b94cc0e2afc>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke(System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in <eae584ce26bc40229c1b1aa476bfa589>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00014] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Reflection.MonoCMethod.DoInvoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0007a] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Reflection.MonoCMethod.Invoke (System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.RuntimeType.CreateInstanceImpl (System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes, System.Threading.StackCrawlMark& stackMark) [0x00213] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Activator.CreateInstance (System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes) [0x00095] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Activator.CreateInstance (System.Type type, System.Object[] args) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0
at Verse.LoadedModManager.CreateModClasses () [0x00076] in <1782cb69665b4d3abcdadb97df9ae541>:0
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)

Most likely a vanilla update broke it and it's been fixed.

Originally posted by legodude17:

Most likely a vanilla update broke it and it's been fixed.

thank you <3