Introduction to Premiere Pro with Valentina

I obtained access to Premiere Pro about 3 weeks ago and began the tutorials that were provided when I opened the app. However, I had to step away and today I noticed there is a new series available with a different instructor. While trying to download the sample files to follow along, I get the following error:

This is true in either Chrome or Edge. And I have followed all of the steps recommended to get past this type of error (up to and including our IT folks and internal security protocols). This leads me to believe the issue is with where the files are being held. I do not have this issue with the advanced course files or the course files found in Ae and Ch tutorials.