Bizarre Error Message When Opening a Scrivener Doc in Catalina

I have a project that I’ve been working on in Scrivener on a Macbook running El Capitan. I finally got it to the point I wanted it to be at and popped it into my iCloud Drive then tried to reopen (and update) it on my iMac running Catalina. I received a bizarre and somewhat disturbing message (see screen shot). I’m at a total loss as to why this would reference a Federal Office. I do work for the Federal government but I’ve never used my home computers for work and I’m not in the mentioned branch. Does anyone have any ideas about why this might be happening?