can't open s4s??

I don't have enough posts to post on the bugs thread, so i'll have to post here.
Everytime I open s4s this message appears:

The Sims 4 Studio - Version 3.1.0.2
System.AggregateException: Um ou mais erros. ---> SQLite.SQLiteException: Could not open database file: C:\Users\[UserName]\Documents\Sims 4 Studio\S4Studio_v3.1.sqlite (CannotOpen)
em S4Studio.Shared.AppModel.DoInit() na C:\Sims\Studio\S4S\TheS4Studio\S4Studio.Shared\ViewModels\App\AppModel.cs:linha 180
em System.Threading.Tasks.Task.InnerInvoke()
em System.Threading.Tasks.Task.Execute()
--- Fim do rastreamento de pilha de exceções internas ---
---> (Exceção Interna N° 0) SQLite.SQLiteException: Could not open database file: C:\Users\[UserName]\Documents\Sims 4 Studio\S4Studio_v3.1.sqlite (CannotOpen)
em S4Studio.Shared.AppModel.DoInit() na C:\Sims\Studio\S4S\TheS4Studio\S4Studio.Shared\ViewModels\App\AppModel.cs:linha 180
em System.Threading.Tasks.Task.InnerInvoke()
em System.Threading.Tasks.Task.Execute()<---

I don't know what to do, I tried everything; fixing the game's files, deleting the s4s folder and re-downloading it, nothing works.
I have the Sims4Studio Wishes version.

Please help