SystemMonitor diagnostics error

The problem

There's an error when SystemMonitor diagnostics are requested: AttributeError: 'NoneType' object has no attribute 'items'

What version of Home Assistant Core has the issue?

core-2024.8.3

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

systemmonitor

Link to integration documentation on our website

https://www.home-assistant.io/integrations/systemmonitor/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Registrador: aiohttp.server
Fuente: /usr/local/lib/python3.12/site-packages/aiohttp/web_protocol.py:433
Ocurrió por primera vez: 12:02:23 (6 ocurrencias)
Último inicio de sesión: 12:03:21

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/aiohttp/web_protocol.py", line 462, in _handle_request
    resp = await request_handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/aiohttp/web_app.py", line 537, in _handle
    resp = await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/aiohttp/web_middlewares.py", line 114, in impl
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/security_filter.py", line 92, in security_filter_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/forwarded.py", line 210, in forwarded_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/request_context.py", line 26, in request_context_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 85, in ban_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 242, in auth_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/http/headers.py", line 32, in headers_middleware
    response = await handler(request)
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/http.py", line 73, in handle
    result = await handler(request, **request.match_info)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/diagnostics/__init__.py", line 280, in get
    data = await info.config_entry_diagnostics(hass, config_entry)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/diagnostics.py", line 21, in async_get_config_entry_diagnostics
    "data": coordinator.data.as_dict(),
            ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/coordinator.py", line 45, in as_dict
    "addresses": {k: str(v) for k, v in self.addresses.items()},
                                        ^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'items'

Additional information

No response

Hey there @gjohansson-st, mind taking a look at this issue as it has been labeled with an integration (systemmonitor) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of `systemmonitor` can trigger bot actions by commenting: - `@home-assistant close` Closes the issue. - `@home-assistant rename Awesome new title` Renames the issue. - `@home-assistant reopen` Reopen the issue. - `@home-assistant unassign systemmonitor` Removes the current integration label and assignees on the issue, add the integration domain after the command. - `@home-assistant add-label needs-more-information` Add a label (needs-more-information, problem in dependency, problem in custom component) to the issue. - `@home-assistant remove-label needs-more-information` Remove a label (needs-more-information, problem in dependency, problem in custom component) on the issue.

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home-assistant / core