Installation requirements / errors about crypto-trading-bot HOT 4 CLOSED

bitmex@ubuntu:~$   curl localhost:8080
curl: (52) Empty reply from server

bitmex@ubuntu:~/crypto-trading-bot$ node index.js trade
body-parser deprecated undefined extended: provide extended option modules/http.js:47:25
**Webserver listening on: 0.0.0.0:8080**
(node:53521) [DEP0025] DeprecationWarning: sys is deprecated. Use util instead.
{"message":"Mailer: {\"errno\":\"ENOTFOUND\",\"code\":\"ECONNECTION\",\"syscall\":\"getaddrinfo\",\"hostname\":\"mail.foo.de\",\"host\":\"mail.foo.de\",\"port\":465,\"command\":\"CONN\"}","level":"error","timestamp":"2019-01-08T05:04:08.972Z"}
(node:53521) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 open listeners added. Use emitter.setMaxListeners() to increase limit
WebSocket [INFO]: Connected.
Bitmex: Connection opened.
{"op":"subscribe","args":"tradeBin1m:ADAH19"}
{"op":"subscribe","args":"tradeBin5m:ADAH19"}
{"op":"subscribe","args":"tradeBin1h:ADAH19"}