Error during startup homebridge
Hi
I installed the plugin following the instructions, when starting homebridge I have these errors, what problems could I have?
thanks in advance 
Marco

[2018-6-25 14:49:16] Loaded plugin: homebridge-mi-hygrothermograph
[2018-6-25 14:49:17] Registering accessory 'homebridge-mi-hygrothermograph.Hygrotermograph'
[2018-6-25 14:49:17] ---
[2018-6-25 14:49:17] Loaded config.json with 1 accessories and 0 platforms.
[2018-6-25 14:49:17] ---
[2018-6-25 14:49:17] Loading 1 accessories...
/usr/lib/node_modules/homebridge/lib/api.js:50
  if (name.indexOf('.') == -1) {
          ^

TypeError: Cannot read property 'indexOf' of undefined
    at API.accessory (/usr/lib/node_modules/homebridge/lib/api.js:50:11)
    at Server._loadAccessories (/usr/lib/node_modules/homebridge/lib/server.js:254:42)
    at Server.run (/usr/lib/node_modules/homebridge/lib/server.js:81:38)
    at module.exports (/usr/lib/node_modules/homebridge/lib/cli.js:40:10)
    at Object.<anonymous> (/usr/lib/node_modules/homebridge/bin/homebridge:17:22)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
