I can no longer use google home assistant

Integration with Google Home Assistant has not been working for some time. I deleted the existing project and started over following the existing instructions. In the end, however, I can no longer add the account to Google Home.
In the log I noticed the following errors in the logs.

2024-06-22 14:09:33.090 ERROR (MainThread) [homeassistant.components.google_assistant.http] Request for https://homegraph.googleapis.com/v1/devices:requestSync failed: 404
2024-06-22 14:09:33.091 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection] [547405801664] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 241, in handle_call_service
    response = await hass.services.async_call(
  File "/usr/src/homeassistant/homeassistant/core.py", line 2741, in async_call
    response_data = await coro
  File "/usr/src/homeassistant/homeassistant/core.py", line 2784, in _execute_service
    return await target(service_call)
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 977, in entity_service_call
    single_response = await _handle_entity_call(
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 1049, in _handle_entity_call
    result = await task
  File "/usr/src/homeassistant/homeassistant/components/button/__init__.py", line 134, in _async_press_action
    await self.async_press()
  File "/usr/src/homeassistant/homeassistant/components/google_assistant/button.py", line 60, in async_press
    raise HomeAssistantError(
homeassistant.exceptions.HomeAssistantError: Unable to sync devices with result code: 404, check log for more info.