Just copying and pasting Joe’s message from the news in case you haven’t seen it. Please read his post as it will give vital information and hopefully answer most of your questions.

We will migrate the site to a new server on Friday, September 1 @ 8 PM EDT.
There will be downtime lasting between 1 hour and 72 hours, depending on a variety of factors.
You can read more about this here: https://www.star-fleet.com/core/command/command/posts/222949/

~Linds