Sims 4 Studio Object Recolor Error

Every time I try to click on the object recolor tag in studio I get this message:





The Sims 4 Studio - Version 3.1.2.1

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

at S4Studio.Data.FileDb.Models.ObjectContentMetadata.DoInitialize(ObjectCatalogResource buy_build, IResourceProvider resources, Object[] extras)

at S4Studio.Data.FileDb.Models.ContentMetadata`1.Initialize(IPackedResource resource, IResourceProvider resources, Object[] extra)

at S4Studio.Data.FileDb.Sims4FileTable.InitializeMetadata[TResource,TMetadata](Func`2 extra_func)

at S4Studio.Data.FileDb.Sims4FileTable.InitObjects()

at S4Studio.Data.FileDb.Sims4FileTable.get_ObjectItems()

at S4Studio.Shared.ObjectFeatureViewModel.BuildItemList()

at S4Studio.Shared.FeatureViewModel.<get_CreateCommand>b__27_1()

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.Data.FileDb.Models.ObjectContentMetadata.DoInitialize(ObjectCatalogResource buy_build, IResourceProvider resources, Object[] extras)

at S4Studio.Data.FileDb.Models.ContentMetadata`1.Initialize(IPackedResource resource, IResourceProvider resources, Object[] extra)

at S4Studio.Data.FileDb.Sims4FileTable.InitializeMetadata[TResource,TMetadata](Func`2 extra_func)

at S4Studio.Data.FileDb.Sims4FileTable.InitObjects()

at S4Studio.Data.FileDb.Sims4FileTable.get_ObjectItems()

at S4Studio.Shared.ObjectFeatureViewModel.BuildItemList()

at S4Studio.Shared.FeatureViewModel.<get_CreateCommand>b__27_1()

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

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




What does this mean? And how do I fix it?