Python quiz not working - Access denied error

Can you somebody respond to this. We are getting an error when trying to access the python quiz

I had checked it from my side and there is no issue with this lab. Could you please try to clear the cache or use icognito window?

No this is not working. First it worked then the same error comes. I tried clearing the cache and used private mode. I also tried edge browser.

Can you please try to switch to our new site at
But first you have to create a new account using the same email you had already used in the old site