[FATAL] uncaughtException: invalid status code: 1006

[talyguryn]

2018-06-06T15:36:18.552Z - error: uncaughtException: invalid status code: 1006 date=Wed Jun 06 2018 18:36:18 GMT+0300 (MSK), pid=20632, uid=0, gid=0, cwd=/var/www/hawk.so/hawk, execPath=/usr/bin/node, version=v9.11.1, argv=[/usr/bin/node, /var/www/hawk.so/hawk/bin/www], rss=162979840, heapTotal=48066560, heapUsed=41184608, external=18575553, loadavg=[0.26220703125, 0.28369140625, 0.3125], uptime=784563
Error: invalid status code: 1006
at Receiver.controlMessage (/var/www/hawk.so/hawk/node_modules/ws/lib/Receiver.js:414:22)
at Receiver.getData (/var/www/hawk.so/hawk/node_modules/ws/lib/Receiver.js:325:12)
at Receiver.startLoop (/var/www/hawk.so/hawk/node_modules/ws/lib/Receiver.js:165:16)
at Receiver.add (/var/www/hawk.so/hawk/node_modules/ws/lib/Receiver.js:139:10)
at Socket._ultron.on (/var/www/hawk.so/hawk/node_modules/ws/lib/WebSocket.js:142:22)
at Socket.emit (events.js:180:13)
at addChunk (_stream_readable.js:274:12)
at readableAddChunk (_stream_readable.js:261:11)
at Socket.Readable.push (_stream_readable.js:218:10)
at TCP.onread (net.js:581:20)