Plutonium

The Plutonium updater says it can't acces the game files, it shows the following message:
Crash ID: a42d5f5d383f429db51be4265f4a6de7
Plutonium.Updater.Core.Models.UpdateException: Failed to update file bin/plutonium-bootstrapper-win32.exe ---> System.UnauthorizedAccessException: Acceso denegado a la ruta de acceso 'C:\Users\javie\AppData\Local\Plutonium\bin\plutonium-bootstrapper-win32.exe'.
en System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
en System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
en System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
en System.IO.File.InternalWriteAllBytes(String path, Byte[] bytes, Boolean checkHost)
en Plutonium.Updater.Core.Updater.<Run>d__23.MoveNext()
--- Fin del seguimiento de la pila de la excepción interna ---
en Plutonium.Updater.Core.Updater.<Run>d__23.MoveNext()
--- Fin del seguimiento de la pila de la ubicación anterior donde se produjo la excepción ---
en System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
en System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
en Plutonium.Updater.App.Windows.UpdateWindow.<UpdateWindow_Loaded>d__6.MoveNext()