[BUG] Config flow could not be loaded: 500 Internal Server Error Server

Environment

• ShellyForHASS 1.0.2
• Home Assistant 2022.9.7 / Home Assistant OS 9.0
• Proxmox 7.2-11

Describe the bug

• After Installing the Integration with the help of HACS I get an 500 error when clicking on CONFIGURE

Steps to Reproduce

• Install ShellyForHASS through HACS
• Restart HA
• Go to Integrations
• Click on Configure of the ShellyForHASS entry

Screenshots

Traceback/Error logs

  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 759, in async_finish_flow
    entry = ConfigEntry(
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 233, in __init__
    self.data = MappingProxyType(data)
TypeError: mappingproxy() argument must be a mapping, not NoneType
2022-10-04 19:33:43.558 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/aiohttp/web_protocol.py", line 435, in _handle_request
    resp = await request_handler(request)
  File "/usr/local/lib/python3.10/site-packages/aiohttp/web_app.py", line 504, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.10/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 60, in security_filter_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/forwarded.py", line 100, in forwarded_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/request_context.py", line 28, in request_context_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 82, in ban_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 236, in auth_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 136, in handle
    result = await result
  File "/usr/src/homeassistant/homeassistant/components/config/config_entries.py", line 169, in get
    return await super().get(request, flow_id)
  File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 96, in get
    result = await self._flow_mgr.async_configure(flow_id)
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 280, in async_configure
    result = await self._async_handle_step(
  File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 400, in _async_handle_step
    result = await self.async_finish_flow(flow, result.copy())
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 759, in async_finish_flow
    entry = ConfigEntry(
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 233, in __init__
    self.data = MappingProxyType(data)
TypeError: mappingproxy() argument must be a mapping, not NoneType

Additional context