EspruinoHub error

Hi - getting the following error in EspruinoHub (not sure what the message is that it's choking on yet):

buffer.js:798
    return { type: 'Buffer', data };
    ^

RangeError: Maximum call stack size exceeded
    at Buffer.toJSON (buffer.js:798:5)
    at Object.stringify (native)
    at getStatusText (/home/pi/EspruinoHub/lib/status.js:50:37)
    at dumpStatus (/home/pi/EspruinoHub/lib/status.js:59:14)
    at Console.console.log (/home/pi/EspruinoHub/lib/status.js:75:5)
    at getStatusText (/home/pi/EspruinoHub/lib/status.js:45:41)
    at dumpStatus (/home/pi/EspruinoHub/lib/status.js:59:14)
    at Console.console.log (/home/pi/EspruinoHub/lib/status.js:75:5)
    at getStatusText (/home/pi/EspruinoHub/lib/status.js:45:41)
    at dumpStatus (/home/pi/EspruinoHub/lib/status.js:59:14)
pi@raspberrypi:~/EspruinoHub $