Steam Authentication Failure

[frozen torrent]

Any advice on Steam Authentication Failure? In the past I've been able to just keep relogging until it works, but I've tried about 50 times over the past 24 hours with 3 computer restarts. Not to sound ungrateful for the work done on this game, but I've paid a lot of money for premium and cosmetics to support this game and not only do I not have access to them, I can't play the game at all outside of practice... Nearly every game I own is through Steam, and this hasn't happened to me once on any of them.

[charred juniper]

Verify your game files