Log file from HA not starting


I can log into Hassio via ssh and also reach the configurator at :3218 to review the config files and log but I cannot start the web interface.

Below is the log, can you help me diagnose the problem?

2018-10-30 21:33:42 WARNING (Recorder) [homeassistant.components.recorder] Ended unfinished session (id=129 from 2018-10-30 10:11:11.459324)
2018-10-30 21:33:50 ERROR (MainThread) [homeassistant.components.device_tracker] Unable to load /config/known_devices.yaml: Config file not found: /config/known_devices.yaml
2018-10-30 21:33:52 ERROR (SyncWorker_17) [pychromecast.socket_client] Failed to connect, retrying in 5.0s
2018-10-30 21:33:53 ERROR (MainThread) [homeassistant.config_entries] Error setting up entry -31.45, 115.67 for openuv
Traceback (most recent call last):
File “/usr/local/lib/python3.6/site-packages/homeassistant/config_entries.py”, line 241, in async_setup
result = await component.async_setup_entry(hass, self)
File “/usr/local/lib/python3.6/site-packages/homeassistant/components/openuv/init.py”, line 174, in async_setup_entry
KeyError: ‘scan_interval’