May be the reason why the phone connection is not smooth, you can try to restart the phone, switch the network, re-open the APP. 7FRESH (Chinese name: 七鲜) is the Jingdong Group online and offline integration of gourmet fresh food supermarkets, focusing on fresh seafood, to provide stores as the center of the 3km range of half an hour delivery delivery service, covering seafood, fruits and vegetables, meat, poultry, eggs, bakery, flowers, food and drink, And is committed to creating a "supermarket + catering" of the emerging composite retail business, so that consumers can buy fresh, safe and reliable goods in the seven fresh.