Error executing service <ServiceCall homeassistant.restart

[mack0352]

Home Assistant release with the issue:
0.84.6

Last working Home Assistant release (if known):
0.84.4?

Operating environment (Hass.io/Docker/Windows/etc.):
Hassio on RPi3

Component/platform:

Description of problem:
When I try to click on "Restart" on the Server Management portion of the configuration screen, Hassio does not restart. I get this error in the Log Details
Sun Dec 23 2018 08:35:58 GMT-0600 (Central Standard Time)

Error executing service <ServiceCall homeassistant.restart (c:bd8fc188b00f42ca8287045d750636e1)>
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/homeassistant/core.py", line 1130, in _safe_execute
await self._execute_service(handler, service_call)
File "/usr/local/lib/python3.6/site-packages/homeassistant/core.py", line 1143, in _execute_service
await handler.func(service_call)
File "/usr/local/lib/python3.6/site-packages/homeassistant/components/hassio/init.py", line 268, in async_handle_core_service
error = await async_check_config(hass)
File "/usr/local/lib/python3.6/site-packages/homeassistant/components/hassio/init.py", line 148, in async_check_config
raise HomeAssistantError() from None
homeassistant.exceptions.HomeAssistantError

Looks like I am not the only one ...
https://community.home-assistant.io/t/unable-to-restart-homeassistant-error-executing-service-servicecall-homeassistant-restart/73370/18

[mack0352]

OK. I cleared out my db file, and now the restart server button works. My db file was over a 1gb.