Got a mod error but cant find the mod

[The Bread Stealer]

heres the error Error while instantiating a mod of type VFECore.VFECore: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> HarmonyLib.HarmonyException: Patching exception in method static System.Void RimWorld.GeneUIUtility::DrawGeneBasics(Verse.GeneDef gene, UnityEngine.Rect geneRect, RimWorld.GeneType geneType, System.Boolean doBackground, System.Boolean clickable, System.Boolean overridden) ---> System.FormatException: Method static System.Void RimWorld.GeneUIUtility::DrawGeneBasics(Verse.GeneDef gene, UnityEngine.Rect geneRect, RimWorld.GeneType geneType, System.Boolean doBackground, System.Boolean clickable, System.Boolean overridden) cannot be patched. Reason: Invalid IL code in (wrapper dynamic-method) RimWorld.GeneUIUtility:RimWorld.GeneUIUtility.DrawGeneBasics_Patch0 (Verse.GeneDef,UnityEngine.Rect,RimWorld.GeneType,bool,bool,bool): IL_00ce: stloc.s 4


at HarmonyLib.PatchFunctions.UpdateWrapper (System.Reflection.MethodBase original, HarmonyLib.PatchInfo patchInfo) [0x0008c] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.PatchClassProcessor.ProcessPatchJob (HarmonyLib.PatchJobs`1+Job[T] job) [0x000bb] in <255414689d344b1385ae719f6cce8c55>:0
--- End of inner exception stack trace ---
at HarmonyLib.PatchClassProcessor.ReportException (System.Exception exception, System.Reflection.MethodBase original) [0x0010f] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.PatchClassProcessor.Patch () [0x00093] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.Harmony.<PatchAll>b__10_0 (System.Type type) [0x00007] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.CollectionExtensions.Do[T] (System.Collections.Generic.IEnumerable`1[T] sequence, System.Action`1[T] action) [0x00014] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.Harmony.PatchAll (System.Reflection.Assembly assembly) [0x00006] in <255414689d344b1385ae719f6cce8c55>:0
at HarmonyLib.Harmony.PatchAll () [0x0001b] in <255414689d344b1385ae719f6cce8c55>:0
at VFECore.VFECore..ctor (Verse.ModContentPack content) [0x00018] in <9474acd48d2c48bcbe32fc9569474788>: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 <8c412d4a16f94d4cb337e846f2dee469>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) Verse.Log:Verse.Log.Error_Patch2 (string)
Verse.LoadedModManager:CreateModClasses ()
Verse.LoadedModManager:LoadAllActiveMods ()
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__27_0 ()
System.Threading.ThreadHelper:ThreadStart_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
System.Threading.ThreadHelper:ThreadStart ()

[Astasia]

Make sure your version of RimWorld is up to date, go into the betas tab and opt-out of all beta versions. Do a file verification. Unsubscribe and resubscribe to Vanilla Expanded Framework and Harmony. Do those one at a time in that order and see if it fixes things along the way. If none of those worked post a full hugslib log.

It's probably the first one though, I think I've see this error before. The current version of VFE doesn't work with the last beta version of 1.4 because it makes references to new functions in the latest updates.