Build a Celestial Bodies Database

I was trying to complete the course, and when I tried renaming a column, I got an error where I was kicked out of the server. I deleted and restarted my database, and now the VSCode interface and the CodeRoad interface are no longer showing as well. It’s just with this specific course. I already waited for more than an hour but still nothing is showing. I also tried changing browsers but it still not working. Here is a screenshot of my interface:

Any help would be greatly appreciated!

I too am having troubles with that course. Last night it was a lot of black screens like you’re showing, but also it’s this error, even after soft resets and/or clearing the cache.