Links for challenges on Coding Club Testing Center not working

[vfmate]

Hi!

When I am trying to open the links for the challenges from the Coding Club Testing Center (Access the quizzes -> Challenges) they are leading me to sites which are not found. For example for Challenge 1 - Temporal changes in red squirrel abundance the link leads to https://ourcodingclub.github.io/DL/challenge1.html which is not found.
I was able to find the correct links in the repo under ourcodingclub.github.io/_DL/ but it might be worth to fix the links.