Cant' setup Integration OWNTracks

Hi,

I am trying to setup OWNTracks intergation on home assistant, keep getting unknown error occurred.

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Logger: aiohttp.server
Source: helpers/network.py:116
First occurred: 10:56:47 PM (46 occurrences)
Last logged: 11:02:00 PM

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_protocol.py", line 422, in _handle_request
    resp = await self._request_handler(request)
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_app.py", line 499, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_middlewares.py", line 119, in impl
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/security_filter.py", line 60, in security_filter_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/forwarded.py", line 98, in forwarded_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/request_context.py", line 24, in request_context_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 78, in ban_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 138, in auth_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 135, in handle
    result = await result
  File "/usr/src/homeassistant/homeassistant/components/config/config_entries.py", line 157, in post
    return await super().post(request, flow_id)
  File "/usr/src/homeassistant/homeassistant/components/http/data_validator.py", line 62, in wrapper
    result = await method(view, request, *args, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 110, in post
    result = await self._flow_mgr.async_configure(flow_id, data)
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 246, in async_configure
    result = await self._async_handle_step(flow, cur_step["step_id"], user_input)
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 320, in _async_handle_step
    result: FlowResult = await getattr(flow, method)(user_input)
  File "/usr/src/homeassistant/homeassistant/components/owntracks/config_flow.py", line 27, in async_step_user
    webhook_id, webhook_url, cloudhook = await self._get_webhook_id()
  File "/usr/src/homeassistant/homeassistant/components/owntracks/config_flow.py", line 76, in _get_webhook_id
    webhook_url = self.hass.components.webhook.async_generate_url(webhook_id)
  File "/usr/src/homeassistant/homeassistant/components/webhook/__init__.py", line 69, in async_generate_url
    get_url(hass, prefer_external=True, allow_cloud=False),
  File "/usr/src/homeassistant/homeassistant/helpers/network.py", line 116, in get_url
    raise NoURLAvailableError
homeassistant.helpers.network.NoURLAvailableError