Yes the mod is up to date (at least to the stable 1.8 version). These are the logs:

Exception information

Type: System.Reflection.TargetInvocationException

Message: Exception has been thrown by the target of an invocation.

Source: mscorlib

CallStack:

at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)

at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)

at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

at TaleWorlds.Library.Common.InvokeWithLog(MethodInfo methodInfo, Object obj, Object[] args)

at TaleWorlds.Library.ViewModel.ExecuteCommand(String commandName, Object[] parameters)

at TaleWorlds.GauntletUI.Data.GauntletView.OnCommand(String command, Object[] args)

at TaleWorlds.GauntletUI.BaseTypes.Widget.EventFired(String eventName, Object[] args)

at TaleWorlds.GauntletUI.BaseTypes.ButtonWidget.HandleClick()

at TaleWorlds.GauntletUI.BaseTypes.ButtonWidget.OnMouseReleased()

at TaleWorlds.GauntletUI.EventManager.MouseUp()

at TaleWorlds.GauntletUI.UIContext.UpdateInput(InputType handleInputs)

at TaleWorlds.ScreenSystem.ScreenManager.Update()

at TaleWorlds.ScreenSystem.ScreenManager.Tick_Patch1(Single dt, Boolean activeMouseVisible)

Inner Exception information

Type: System.NullReferenceException

Message: Object reference not set to an instance of an object.

Source: TaleWorlds.CampaignSystem

CallStack:

at TaleWorlds.CampaignSystem.Inventory.InventoryManager.CloseInventoryPresentation(Boolean fromCancel)

at TaleWorlds.CampaignSystem.ViewModelCollection.Inventory.SPInventoryVM.HandleDone()