Problem with phone sms auth

try {
    const users = new Users(args.client);
    const account = new Account(args.client);
    const phoneNumber = args.reqBody.phone.trim();
    const result = await users.list([Query.equal("phone", phoneNumber)]);

    // If user exist create phone token and return to the client that user exist so it can redirect to the OTP client view.
    if (result.users.length) {
      await account.createPhoneToken(result.users[0].$id, phoneNumber);
      return args.res.json(
        { userExist: true, userId: result.users[0].$id },
        200,
        args.CORSHeadersResponse,
      );
    }

    // User does not exist do not send SMS and indicate to the client to redirect to the personal informations view.
    return args.res.json({ userExist: false }, 200, args.CORSHeadersResponse);
  } catch (err) {
    return args.res.json({ error: err.message }, 500, args.CORSHeadersResponse);
  }