My Sims 4 Studio isnt working??

Hi I hope that someone can help me, I have installed sims 4 studios using the links on this website and i have had an acc for a while. 

when opening the s4s it appears with this message:


The Sims 4 Studio - Version 3.1.0.9

System.AggregateException: One or more errors occurred. ---> SQLite.SQLiteException: Could not open database file: C:\Users\HP\Documents\Sims 4 Studio\S4Studio_v3.1.sqlite (CannotOpen)

at S4Studio.Shared.AppModel.DoInit()

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

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

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

---> (Inner Exception #0) SQLite.SQLiteException: Could not open database file: C:\Users\HP\Documents\Sims 4 Studio\S4Studio_v3.1.sqlite (CannotOpen)

at S4Studio.Shared.AppModel.DoInit()

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

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




What does this mean and how do i fix this???