Unable to run C1M2_Ungraded_lab2 in course "Retrieval Augmented Generation (RAG)" module 2

Yes, I ran this on another browser (Chrome) and also in Incognito mode - I had taken the course till this point on Safari. I also ran this in IPython locally on my computer and got the same error.

I was able to run it in a slightly different way (by downloading the files directly and using another function to load the files - not sure if this method is ok.
I have attached the jupyter notebook if anyone wants to take a look.

Download the files locally and load the files

C1M2_Ungraded_Lab_2_LoadFiles.ipynb (27.9 KB)