It's because your access had been removed due to not replying to the email that was sent out late 2020 looking for confirmation to stay in the beta test group but it seems a lot either ignored it or just didn't get it (likely due to issues with the hosting provider I was using at that time).
That was all finally processed around late 2021 from the responses I'd actually received back & anyone how hadn't was removed. I'd missed something when doing all of that which got resolved earlier this year & that's why it's throwing that error for you.
I've re-enabled your access & you'll need to regenerate your download token to allow for auto updating to work.
-dro