Crash bug in WebSocket.js

[neuhaus]

I've had this bug happen twice on my server:

.../wpilot/node_modules/ws/lib/WebSocket.js:175
else throw new Error('not opened');
^
Error: not opened
at WebSocket.send (.../wpilot/node_modules/ws/lib/WebSocket.js:175:16)
at post_update (.../wpilot/wpilots.js:344:20)
at gameloop_tick (.../wpilot/wpilots.js:226:5)
at Timer.gameloop (.../wpilot/lib/gameobjects.js:206:7)
at Timer.exports.setInterval.timer.ontimeout (timers.js:234:14)