message: fix some error message + fix '/login' issue when use other schema name
diff: @@ -157,7 +157,7 @@ router.get('/activate-account', async (req, res, next) => {
  });
  } catch (e) {
  console.error(e);
  - return next(Boom.unauthorized('Account is already activated, there is no account or unable to activate account'));
  + return next(Boom.unauthorized('Error connection to GraphQL'));
  }
  if (hasura_data[`update_${schema_name}users`].affected_rows === 0) {
  @@ -321,7 +321,7 @@ router.post('/login', async (req, res, next) => {
  } catch (e) {
  console.error('Error connection to GraphQL');
  console.error(e);
  - return next(Boom.unauthorized('Invalid username or password'));
  + return next(Boom.unauthorized('Error connection to GraphQL'));
  }
  if (hasura_data[`${schema_name}users`].length === 0) {
  @@ -351,7 +351,7 @@ router.post('/login', async (req, res, next) => {
  // generate refetch token and put in database
  query = `
  mutation (
  - $refetch_token_data: refetch_tokens_insert_input!
  + $refetch_token_data: ${schema_name}refetch_tokens_insert_input!
  ) {
  insert_${schema_name}refetch_tokens (
  objects: [$refetch_token_data]
  