Advancement report "evaluated to null"

I’ve been dutifully recording all our Scout advancements in IA since our last Court of Honor in June. Usually when I log on I see the increasing number of items in red above the “run report” column. Today I encountered an Error message at the top of the page, reading Error: Expression {organizationGuid} evaluated to null. And when I clicked on the advancement report (under Run Report) where those items had been accruing, I got a message saying I had to approve something before running the report. I did look and see that at least some of the merit badges/ranks/awards remained, but there is no activity to generate an advancement report between June 19, 2021, and today. I am the Troop Advancement chair. Thank you. - Maura