for everyone getting the Error 203 in the launcher OR the 404 Error when on mobile:
we are aware and looking into it. We will update you here and on discord once it’s fixed.
As a workaround, you can start the game directly from executable Windows: AlbionOnlinegame -> launch_albion_online.exe or MacOS: Settings in launcher -> Game Folder -> start the app there
Update (Talion): Theoretically the issue should be fixed now. It might take a few minutes for all changes to go through caches along the way. Should be good to go though.