Home Assistant completely not working or responding. Don't know what to do. Help?

I have hass.io installed on a RP3, and it won’t respond. I’ve restarted, I’ve checked the sd card. All the files are there, as far as I can tell. I don’t know where to start to try and trouble shoot this. Any help appreciated.

Did you recently upgrade from 0.82 to 0.83? If so are you using owntracks? If you are remove it from your config and restart. Then setup owntracks from the UI.

No, but I can’t even access my config files. I can’t do anything.

did you ever install the SSH add-on for hassio? If so can you SSH in to the Pi?