Configuration invalid Integration error: s - Integration 's' not found

Hello, I recently started working with Home Assistant and things have been progressing nicely. Today, while trying to reboot I received an error. Checking the home-assistant.log shows the following. ideas?

2022-04-04 09:12:16 ERROR (MainThread) [homeassistant.components.hassio] The system cannot restart because the configuration is not valid: Integration error: s - Integration 's' not found.

2022-04-04 09:12:16 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection] [140492134431760] The system cannot restart because the configuration is not valid: Integration error: s - Integration 's' not found.

Traceback (most recent call last):

  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 192, in handle_call_service

    await hass.services.async_call(

  File "/usr/src/homeassistant/homeassistant/core.py", line 1636, in async_call

    task.result()

  File "/usr/src/homeassistant/homeassistant/core.py", line 1673, in _execute_service

    await cast(Callable[[ServiceCall], Awaitable[None]], handler.job.target)(

  File "/usr/src/homeassistant/homeassistant/components/hassio/__init__.py", line 610, in async_handle_core_service

    raise HomeAssistantError(

homeassistant.exceptions.HomeAssistantError: The system cannot restart because the configuration is not valid: Integration error: s - Integration 's' not found.

Check configuration.yaml for a stray s at the start of a line.

That was it! Sorry for the rookie error.