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

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PirateCouncil.UpdateUniqueFacilitiesOwned (.PointOfInterest facility)

PirateCouncil.UnlockFacility (.PointOfInterest facility)

PirateCouncil.UpdateFortressesState ()

PirateCouncil+<GameClientState_Turn_Begin_UpdateFortressesState>c__Iterator26E.MoveNext ()

Amplitude.Coroutine.Run ()

GameClientState_Turn_Begin.Run ()

Amplitude.Unity.Framework.FiniteStateMachine.Update ()

GameInterface.Update ()

Session.Update ()

Amplitude.Unity.Session.SessionManager.LateUpdate ()

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V1.5.7 S3  (64-bit)

I'm attaching the previous turn's save,  even though I could NOT reproduce the error after reloading the autosave.

Mezari - error.zip

Best luck.  :)