We do apologize for the inconvenience.
But, please be reminded that Brave Frontier Global is currently still under on-going maintenance. Rest assured that the team is working round-the-clock and doing our best to bring the servers back to stability.
Again, we do apologize.
For the official announcement you can head to this link.
The server is now up and available but we are still carefully monitoring the game. Be sure to check the news in our official forums.