Seeing this bug in server log

Parameter name: key
  at System.Collections.Generic.Dictionary`2[TKey,TValue].FindEntry (TKey key) [0x00008] in <e605204d165a49d89ae7579f3d894429>:0 
  at System.Collections.Generic.Dictionary`2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0x00000] in <e605204d165a49d89ae7579f3d894429>:0 
  at Oxide.Plugins.EventOwner.OnCorpseDropBag (LootableCorpse corpse, DroppedItemContainer container) [0x00012] in <7a1dd93d74ae47c5b725c4e1fadbcb07>:0 
  at Oxide.Plugins.EventOwner+LootableCorpse_DropItems.OnContainerDropped (DroppedItemContainer container, LootableCorpse corpse) [0x00009] in <7a1dd93d74ae47c5b725c4e1fadbcb07>:0 
  at (wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition.LootableCorpse.DropItems_Patch0(LootableCorpse)
  at LootableCorpse.DoServerDestroy () [0x00014] in <3fac3f0d072a4cef996ac78978908b22>:0 
  at BaseNetworkable.DoEntityDestroy () [0x00026] in <3fac3f0d072a4cef996ac78978908b22>:0 
  at BaseNetworkable.Kill (BaseNetworkable+DestroyMode mode, System.Boolean callOnKilled) [0x00062] in <3fac3f0d072a4cef996ac78978908b22>:0 
  at BaseCorpse.RemoveCorpse () [0x0000f] in <3fac3f0d072a4cef996ac78978908b22>:0 
  at InvokeHandlerBase`1[T].DoTick () [0x00120] in <1aacf3981cf84ab4aff9806e296127df>:0 
  at InvokeHandlerBase`1[T].LateUpdate () [0x0001f] in <1aacf3981cf84ab4aff9806e296127df>:0