Internal client error: java.net.ConnectException: Connection timed out: connect
Is not a YAMS problem, but a Mojang/Minecraft one, as you can see from here the session status is red: http://xpaw.ru/mcstatus/
I suggest you go and do something else and try again latter, as every other server will be having the same problem.
Don't believe me? See minecraft.net forums: http://www.minecraft...client-support/