[binance] future websocket error: connection closed by remote server

• OS: centos7
• Programming Language version: NodeJS
• CCXT version: ccxt.pro@0.3.55

We have been trading binance future with ccxt.pro and it has been working fine most of the times. However, every once in a while we receive the following errors:

• connection closed by remote server, closing code 1006
• Connection to wss://fstream.binance.com/ws timed out due to a ping-pong keepalive missing on time.

We suspect the code that cause the problem is the watchOrderBook method, but not 100% sure. Here is the full log for the first error.

 NetworkError: connection closed by remote server, closing code 1006
    at WsClient.onClose (/myProject/node_modules/ccxt.pro/js/base/Client.js:225:25)
    at WebSocket.onClose (/myProject/node_modules/ccxt.pro/node_modules/ws/lib/event-target.js:129:16)
    at WebSocket.emit (events.js:311:20)
    at WebSocket.EventEmitter.emit (domain.js:482:12)
    at WebSocket.emitClose (/myProject/node_modules/ccxt.pro/node_modules/ws/lib/websocket.js:191:10)
    at TLSSocket.socketOnClose (/myProject/node_modules/ccxt.pro/node_modules/ws/lib/websocket.js:858:15)
    at TLSSocket.emit (events.js:323:22)
    at TLSSocket.EventEmitter.emit (domain.js:482:12)
    at net.js:668:12           
    at TCP.done (_tls_wrap.js:556:7) {
  constructor: [Function: NetworkError],
  name: 'NetworkError'
}