S4S Aurora cannot locate game files

Hi, I just downloaded S4S. When trying to create an animation I only see the 'warehouse' button, NO STUDIO BUTTON. I read a previous post with someone else who had this exact problem, I did all the steps except for some reason when I try to change the sims4 path in settings it says error please help.

This is the error message I keep getting:

Sims 4 Studio 1.4.1.8 (Aurora)
System.NullReferenceException: Object reference not set to an instance of an object
at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddAnimation () [0x00024] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.ViewModels.GenericUserCommand+<>c__DisplayClass9_0.<.ctor>b__1 (System.Object y) [0x00000] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.ViewModels.GenericUserCommand.Execute (System.Object parameter) [0x00000] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.ViewModels.Animation.AnimationPackCustomContent.ExecuteAddPosePack () [0x000e2] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.ViewModels.GenericUserCommand+<>c__DisplayClass9_0.<.ctor>b__1 (System.Object y) [0x00000] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.ViewModels.GenericUserCommand.Execute (System.Object parameter) [0x00000] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.Shared.AnimationFeatureViewModel.Clone (S4Studio.Data.IO.Package.IDBPFPackage package, System.String hash, System.Collections.Generic.IEnumerable`1[T] selected_prototypes) [0x00024] in <bbb90f57043040dc88af33c83426504e>:0
at S4Studio.Shared.FeatureViewModel+<>c__DisplayClass28_0.<CreateItem>b__0 () [0x00016] in <bbb90f57043040dc88af33c83426504e>:0
at S4S.UI.Core.S4SWindow+<>c__DisplayClass17_0.<BeginLoading>b__1 () [0x00014] in <bbb90f57043040dc88af33c83426504e>:0

please help, thank you