task async convert to void

i got it working

public async void DownloadDB()
        {
            try
            {
                DropboxClient client2 = new DropboxClient("token");
                string file = "/data1.db3";
                string folder = @"/data/data/AndroidMaster.AndroidMaster/files/data1.db3";
                using (var response = await client2.Files.DownloadAsync(file))
                {
                    using (var fileStream = File.Create(folder))
                    {
                        (await response.GetContentAsStreamAsync()).CopyTo(fileStream);
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
        }