Fatal Error
/srv/deepMiner/node_modules/ws/lib/WebSocket.js:344
      else throw new Error('not opened');
           ^

Error: not opened
    at WebSocket.send (/srv/deepMiner/node_modules/ws/lib/WebSocket.js:344:18)
    at pool2ws (/srv/deepMiner/server.js:142:13)
    at Socket.conn.pl.on (/srv/deepMiner/server.js:202:3)
    at emitOne (events.js:116:13)
    at Socket.emit (events.js:211:7)
    at addChunk (_stream_readable.js:263:12)
    at readableAddChunk (_stream_readable.js:250:11)
    at Socket.Readable.push (_stream_readable.js:208:10)
    at TCP.onread (net.js:594:20)
