version 3.6.12 ping error
getting error:

[2020-1-3 00:25:46] TypeError: Cannot read property 'pingHost' of undefined
    at Timeout.setInterval [as _onTimeout] (/usr/lib/node_modules/homebridge-broadlink-rm/helpers/getDevice.js:31:10)
    at ontimeout (timers.js:498:11)
    at tryOnTimeout (timers.js:323:5)
    at Timer.listOnTimeout (timers.js:290:5)
    at listOnTimeoutNT (timers.js:369:26)
    at _combinedTickCallback (internal/process/next_tick.js:136:11)
    at Immediate._tickCallback [as _onImmediate] (internal/process/next_tick.js:181:9)
    at runCallback (timers.js:810:20)
    at tryOnImmediate (timers.js:768:5)
    at processImmediate [as _immediateCallback] (timers.js:745:5)