Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I have tried clearing the browser history, signing out and back in to no avail. Most of the site recognizes me as logged in (shows my name and profile) and I can access the unit rosters, but as soon as I select a member I get the error message.
I am using Firefox on MacOS (so I can use the Scoutbook Feature Assistant) - I am able to use Safari as a workaround, but would love to be able to stick to one browser. I use Google for single-sign-on.
I use Firefox as well, an this is a fairly new issue for me too. I don’t know what changed to make this error appear, but this was not an issue previously. I’d say it’s been happening to me for about a month.
I’ve tried closing/restarting the browser. I’ve cleared cookies/history, etc. I’ve tried it with the Feature Assistant off. None of it works.
The only thing that stops it for me is using a Private Window (Incognito Mode).