Greetings Riders!
There are lots of reports about the 503 errors and a few of the players can't play or login to the game.
We will be providing a workaround that can fix the issue.
Simply download the launcher data.
Link: https://icarus.file.valofe.com/launc...ncherSetup.exe
If you still experience the same issue, please do let us know in tickets.
Thank you