Can't start my own meeting

[HI56]

I tried to start my own meeting today and got caught in a vicious cycle. The system told me to update the software, but when I complied, I got an error message and was asked to "retry." I did this repeatedly with no success. I tried to log in manually with my email and password, same result. I tried using my meeting ID and pass code. I was always returned to the vicious cycle of trying to update and being told to retry, with no success. I rebooted my computer, but it did nothing. I cancelled the meeting, created a new one, same result. A colleague created a meeting and invited me to join, same result. It feels like I'm in an episode of The Twilight Zone. Any clues?