Cannot get app list because the data returned is empty
Hello! I've successfully added my Samsung TV to Homebridge, and I've set `app_list` to `true`, but whenever I restart Homebridge to get the app list, it can't get the data.
Debug log shown below.

```
[8/29/2020, 12:38:10 AM] [Bedroom TV] [DEBUG] {
  data: { clients: [ [Object] ], id: '2a98efb6-4284-47b6-b5b6-6787546e89fb' },
  event: 'ms.channel.connect'
}
[8/29/2020, 12:38:10 AM] [Bedroom TV] [DEBUG] {
  method: 'ms.channel.emit',
  params: { data: '', to: 'host', event: 'ed.installedApp.get' }
}
Bedroom TV
---------------------
[8/29/2020, 12:38:11 AM] [Bedroom TV] Cannot read property 'forEach' of null
[8/29/2020, 12:38:11 AM] [Bedroom TV] [DEBUG] TypeError: Cannot read property 'forEach' of null
    at /usr/lib/node_modules/homebridge-samsung-tizen/lib/remote.js:195:26
```

TV is Samsung TU8000 50inch, connected with wired.