Hello again!

My current notebook pulling from the legacy website is working, but it looks like the old website is down. So I would like to generate a duplicate notebook for pulling from the new materials project website. I have done a little research on the subject tonight, and as I understand have written the code per the new procedure below. It looks like it is pulling the structure from the new website, but I cannot get it to print to screen as before. What simple thing may I be missing here? Many thanks in advance.