Thanks for the report. I'll make sure that the page gets updated!
We switched cryptology methods on the passwords a few years ago, and unfortunately the modern version of PHP doesn't ship with the old methods. That means to upgrade our version of PHP, we had to stop supporting those old methods, which means we could no longer verify your password. It required a reset to upgrade to the new method. I'll make that more clear on the page, as well.
💖 ✨ 🤗