TypeError: Cannot read property 'binary' of undefined

[hermesfranklin]

Estou obtendo o seguinte problema, oque poderia ser?

Domingo: 25/2/2018 @ 19:24:35 [start] O BOT foi iniciado. Estou analisando mercado agora...
C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\autobahn\lib\transport\websocket.js:99
if (flags.binary) {
^

TypeError: Cannot read property 'binary' of undefined
at WebSocket. (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\autobahn\lib\transport\websocket.js:99:23)
at emitOne (events.js:116:13)
at WebSocket.emit (events.js:211:7)
at Receiver._receiver.onmessage (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\ws\lib\websocket.js:137:47)
at Receiver.dataMessage (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\ws\lib\receiver.js:409:14) at Receiver.getData (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\ws\lib\receiver.js:347:12)
at Receiver.startLoop (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\ws\lib\receiver.js:143:16)
at Receiver.add (C:\Users\Franklin\Desktop\poloniex-trade-bot-master\node_modules\ws\lib\receiver.js:117:10)
at emitOne (events.js:116:13)
at TLSSocket.emit (events.js:211:7)

C:\Users\Franklin\Desktop\poloniex-trade-bot-master>pause
Pressione qualquer tecla para continuar. . .