Error - Cannot save or create package {solved}

Since some time, i'm getting an error whenever i try to create any new package:


The Sims 4 Studio - Version 3.1.3.4

System.AggregateException: One or more errors occurred. ---> System.IO.IOException: Plik istnieje.



at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.__Error.WinIOError()

at System.IO.Path.InternalGetTempFileName(Boolean checkHost)

at System.IO.Path.GetTempFileName()

at S4Studio.Data.IO.Package.DBPFPackage.Save(String out_file, Boolean inline, String temp_path)

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.IO.IOException: Plik istnieje.



at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.__Error.WinIOError()

at System.IO.Path.InternalGetTempFileName(Boolean checkHost)

at System.IO.Path.GetTempFileName()

at S4Studio.Data.IO.Package.DBPFPackage.Save(String out_file, Boolean inline, String temp_path)

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

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

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



Additionally, whenever i try to save a package, i get an error: "Unable to save. Please make sure that your project file is not being used by another program."

Error still occurs even when S4S is opened as administrator and with antivirus turned off, removing Sims 4 Studio folder from my documents didn't helped either, also tested on older version of S4S and after restarting the computer.