Have you just loaded this course up for the first time today, or have you previously started it a while ago and are coming back to it now?
If you haven’t made much progress on it and you don’t mind starting it again, you should be able to fix the problem by deleting the course container at codeally.io and then starting the course afresh on FCC.
How did you start the course without a codeally account (which is created via GitHub)?
If you go through FCC it’s a prerequisite of loading up the course.
You should be able to log in at codeally.io via GitHub, if it doesn’t log you in automatically.
Or did you set it all up locally instead?