Colab Notebook error: HTTPError: 502 Server Error: Bad Gateway for url:

I used the !pip install tensorflow-gpu==1.15.2 to solve the problem with the TF1 but I now have this other problem. The url used in the notebook to download the GAN doesn’t seem to be working. When i go to the link myself I face a 502 Server Error.
How can I fix this problem in order to explore the collab notebooks?

Thank you.

It looks like that was a temporary problem - at least, I just tried and was able to load the file fine. Can you try again and see if the problem is gone for you now?

It works! Thanks you. So it was a temporary problem