Error code after clicking animation clip pack from main menu

Hello all, I am having an issue with S4S. It is updated to the newest version. Every time I try to create an animation clip pack, I get this error code. I've looked everywhere, but I have found no solution to fix it. Any help would be appreciated.


System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object.

at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddAnimation()

at S4Studio.ViewModels.GenericUserCommand.<>c__DisplayClass8_0.<.ctor>b__1(Object y)

at S4Studio.ViewModels.GenericUserCommand.Execute(Object parameter)

at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddPosePack()

at S4Studio.ViewModels.GenericUserCommand.<>c__DisplayClass8_0.<.ctor>b__1(Object y)

at S4Studio.ViewModels.GenericUserCommand.Execute(Object parameter)

at S4Studio.Shared.AnimationFeatureViewModel.Clone(IDBPFPackage package, String hash, IEnumerable`1 selected_prototypes)

at S4Studio.Shared.FeatureViewModel.<>c__DisplayClass28_0.<CreateItem>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

--- End of inner exception stack trace ---

---> (Inner Exception #0) System.NullReferenceException: Object reference not set to an instance of an object.

at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddAnimation()

at S4Studio.ViewModels.GenericUserCommand.<>c__DisplayClass8_0.<.ctor>b__1(Object y)

at S4Studio.ViewModels.GenericUserCommand.Execute(Object parameter)

at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddPosePack()

at S4Studio.ViewModels.GenericUserCommand.<>c__DisplayClass8_0.<.ctor>b__1(Object y)

at S4Studio.ViewModels.GenericUserCommand.Execute(Object parameter)

at S4Studio.Shared.AnimationFeatureViewModel.Clone(IDBPFPackage package, String hash, IEnumerable`1 selected_prototypes)

at S4Studio.Shared.FeatureViewModel.<>c__DisplayClass28_0.<CreateItem>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()<---