enable web access it showed error

[shengkaixuan]

who is the ceo of twitter?

{"_action":"_ask","error":"an error occurred HTTPSConnectionPool(host='ddg-api.herokuapp.com', port=443): Max retries exceeded with url: /search?query=who+is+the+ceo+of+twitter%3F&limit=5 (Caused by ConnectTimeoutError(<urllib3.connection.HTTPSConnection object at 0x0000021F620C2650>, 'Connection to ddg-api.herokuapp.com timed out. (connect timeout=None)'))","success":false}

how to deal with this kind error??