Failed to fetch

[fasat2112]

TypeError: Failed to fetch 
 While processing action: 
 function (dispatch, getState, api) {
    dispatch({
      type: _actionTypes2.default.LOADING
    });
    var chain = currentChain(getState());
    var showHidden = getState().wallet.settings.get('showHiddenAccounts', false);
    return api.emerald.listAccounts(chain, showHidden).then(function (result) {
      dispatch({
        type: _actionTypes2.default.SET_LIST,
        accounts: result
      });
      dispatch(fetchHdPaths());
      dispatch(fetchBalances(result.map(function (account) {
        return account.address;
      })));
    });
  }