Problems with mobile_app integration

Configuration
1

I just started having problems with the mobile_app integration. I’ve looked at the log and it doesn’t show anything at all what the problem is. No changes have been made to my config for months and now this happens. Currently running 0.109.6.

Here’s the log if, it it helps at all:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/util/json.py", line 32, in load_json
    return json.loads(fdesc.read())  # type: ignore
  File "/usr/local/lib/python3.7/json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.7/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.7/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/setup.py", line 171, in _async_setup_component
    hass, processed_config
  File "/usr/src/homeassistant/homeassistant/components/mobile_app/__init__.py", line 40, in async_setup
    app_config = await store.async_load()
  File "/usr/src/homeassistant/homeassistant/helpers/storage.py", line 98, in async_load
    return await self._load_task
  File "/usr/src/homeassistant/homeassistant/helpers/storage.py", line 111, in _async_load
    json_util.load_json, self.path
  File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/util/json.py", line 38, in load_json
    raise HomeAssistantError(error)```

I'm pulling my hair out on this one.
2

Not sure what the issue was, but it cleared up when I restored an earlier snapshot.