Warning help

[SILVERIII]

Can someone teach me solving this?

Soyuz caught this error. Please don't report this to the RocketMan team unless you're certain RocketMan caused this error. with error System.InvalidOperationException: Failed to find parent index in FishTable<Verse.Pawn, System.Int32> for key: 'Sheep5937431', hashCode: '5937431', value: '3', count: '28', bucket array length: '64', total tailing entries count: '5', known chain of tails:
{ index: '10' key: 'Chicken9856387', hashCode: '9856387', value: '24 }
[Ref B39B1C50] Duplicate stacktrace, see ref for original
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch7 (string)
RocketMan.Logger:Debug (string,System.Exception,string)
Soyuz.Patches.Pawn_Tick_Patch:Finalizer (Verse.Pawn,System.Exception)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Pawn.Tick_Patch2 (Verse.Pawn)
Verse.TickList:Tick ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.DoSingleTick_Patch4 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Game.UpdatePlay_Patch3 (Verse.Game)
Verse.Root_Play:Update ()

really plz :(