I'm not the only one with that problem. It says "We experienced a problem authenticating with Armor Games. Please try reloading the page." and no matter how many times i reloaded it the game simply doesn't log in with my AG account (and i'm already logged in on the AG site).
I sent a request directly to their game support, and they say that "Our developers are aware of the authentication issues that are preventing Armor Games players from logging into Spiral Knights and are trying to get this fixed as soon as possible." It took 10 minutes to them to answer me. If also AG admins were so fast this problem would have been solved (probably, after all i don't know who is to blame for this mess).
If also AG admins were so fast this problem would have been solved
I'm pretty sure @Ferret is the only admin who could/would fix the problem. He is one man dealing with a whole site's worth of problems. You have to be patient.
Ferret is not the only admin who's dealing with the site problems,he is the community admin,he helps by reporting community problems to other admins,and orienting those who have problems.
Ferret alone cannot fix it,but he knows who can,and other admins may not even read your report because they are too busy,that's why contacting Ferret is the best solution.