Getting random element from empty hashset.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Warning (string)
Verse.GenCollection:RandomElement<Verse.IntVec3> (System.Collections.Generic.HashSet`1<Verse.IntVec3>)
Verse.FishShadowComponent:FindFishFleckLocation (Verse.WaterBody)
Verse.FishShadowComponent:MapComponentTick ()
Verse.MapComponentUtility:MapComponentTick (Verse.Map)
Verse.Map:MapPostTick ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.DoSingleTick_Patch1 (Verse.TickManager)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.TickManagerUpdate_Patch1 (Verse.TickManager)
Verse.Game:UpdatePlay ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root_Play.Update_Patch1 (Verse.Root_Play)
Your mod conflicts with the "no water no life" mod, the fox takes the water and after a couple of moments throws it away and picks it up again, and so on until it goes to sleep. (there is a video proof, I wrote through a translator)