Hi,
I’m new to HA and have been playing with it for just two weeks. There’s lot’s of exciting stuff, but lot’s of stuff that makes me confused. I’m far from a programming nerd 
Now I managed to somehow mess things up and got these error messages and can’t figure out how to solve them.
Also an Error on Supervisor API, but as a new member was able to embed only one pic.
I guess I did something bad with the Nordpool integration. And maybe something else too since all my add on or integration installations have not ended luckily.
Now I have no access to the yaml files or can’t even restart HA. Is there anything at all to do or do I have to start with a new installation and the latest backup (which unfortunately isn’t very fresh)? Lesson learned here is that always make a backup before tweaking anything 