message: Display clean meesage if Billing setting is not set in Payment list
diff: @@ -553,7 +553,7 @@ export default class BillingService {
  const billingImpl = await BillingFactory.getBillingImpl(req.tenant);
  if (!billingImpl) {
  throw new AppError({
  - errorCode: HTTPError.GENERAL_ERROR,
  + errorCode: HTTPError.MISSING_SETTINGS,
  message: 'Billing service is not configured',
  module: MODULE_NAME, method: 'handleBillingGetPaymentMethods',
  action: action,
  