500 Internal Server Error Server got itself in trouble

[gegges11]

What version of Adaptive Cover are you using?

1.4.5

What version of Home Assistant are you using?

2026.4.2

Checklist

• I have filled out the issue template to the best of my ability.
• This issue only contains 1 issue (if you have multiple issues, open one issue for each issue).
• This issue is not a duplicate issue of currently previous issues..

Describe the issue

I want to configure my First Device "/ Vertical Window Shutter Adaptive / Living Room Window Adaptive” to make adjustments. I'm not selecting the device; instead, I want to configure “Vertical Window Shutter Adaptive.”

Reproduction steps

1.Integration / Adaptive Cover / One device ist defined
2.want to configure the integration
3. got the error "Der Konfigurationsfluss konnte nicht geladen werden: 500 Internal Server Error Server got itself in trouble"
4. check log / copy the errror message
...

Diagnostics dump

2026.4.2

Protokolldetails (FEHLER)
Logger: aiohttp.server
Quelle: /usr/local/lib/python3.14/site-packages/aiohttp/web_protocol.py:488
Erstmals aufgetreten: 13:56:12 (4 Vorkommnisse)
Zuletzt protokolliert: 18:26:51

Error handling request from 192.168.3.200
Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/aiohttp/web_protocol.py", line 517, in _handle_request
resp = await request_handler(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/aiohttp/web_app.py", line 569, in _handle
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/aiohttp/web_middlewares.py", line 117, 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 87, 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 90, in ban_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 295, in auth_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/headers.py", line 41, in headers_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/http.py", line 89, in handle
result = await handler(request, **request.match_info)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/decorators.py", line 83, in with_admin
return await func(self, request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/config/config_entries.py", line 272, in post
return await super().post(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/data_validator.py", line 74, in wrapper
return await method(view, request, data, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 76, in post
return await self._post_impl(request, data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 83, in _post_impl
result = await self._flow_mgr.async_init(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...<2 lines>...
)
^
File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 306, in async_init
flow = await self.async_create_flow(handler, context=context, data=data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 3773, in async_create_flow
return handler.async_get_options_flow(entry)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/config/custom_components/adaptive_cover/config_flow.py", line 385, in async_get_options_flow
return OptionsFlowHandler(config_entry)
File "/config/custom_components/adaptive_cover/config_flow.py", line 640, in init
self.config_entry = config_entry
^^^^^^^^^^^^^^^^^
AttributeError: property 'config_entry' of 'OptionsFlowHandler' object has no setter