Error after attacking animals are defeated

4 animals attacked my colony and so they defended and practically won, but then the error occurs:

```

Noble Fates Critical Error:

NullReferenceException: Object reference not set to an instance of an object

Character.TryToDie (Character causer, System.Boolean blameWarden, System.String cause) (at <89d777beb6fe40e6a57f922ff81bea42>:0)

Character.Damage (Actor causer, System.Single damage) (at <89d777beb6fe40e6a57f922ff81bea42>:0)

Character.Tick (System.Single dt) (at <89d777beb6fe40e6a57f922ff81bea42>:0)

CharacterManager.Tick (System.Single dt) (at <89d777beb6fe40e6a57f922ff81bea42>:0)

ManagerBehavior.Update () (at <89d777beb6fe40e6a57f922ff81bea42>:0)

```

Reloading from the most recent save did not help, because the 4 animals are already attacking there.