I can’t see which line threw that error, so it’s a bit hard to say more based on that. But the high level point is that it is not enough just to copy the notebook file to your local environment, right? You need the entire directory of files. There is a topic on the DLS FAQ Thread about how to download everything.
Once you have that, then you face the problem of “versionitis”: these notebooks were last updated in April of 2021, so they use the versions of all the associated python packages that were current at that time. This whole world of python mutates really quickly, so you can’t just assume that things will work with whatever current versions you happen to have installed. There are no official instructions for how to deal with this, but here’s a thread with some good pointers.