I started getting this "We are sorry..." message a few months ago (using Windows 10). First, it was just when using Firefox. Later, started getting it with Chrome. Then today, (after "upgrading" to Win10-2004) started getting it with MS Edge.
Can still login using IE, and the app on my iPhone works OK.
Any solutions/suggestions to fixing the problem Firefox/Chrome/Edge? Prefer to not depend on IE.
(Please, no snarky comments about switching to / buying an Apple machine!)