Seems there's a bug with World Census reports for at least one nation. I clicked on Australian rePublic (was on the "The World" page) and there's a bug that states "System Error (eval) at Mon Apr 11 11:11:33 2022." Don't know what's up with that, but might be something to look into.
This occurred both when I looked at the first time, after I refreshed the page, and when I went to grab the error message while writing this up.