Likely sold out. When you try to add and intermediate to the cart it comes up with "error" which in the past has usually meant sold out.
I am signed in. Like Steve said, i get "Error" when trying to add to cart. Both days are sold out (I just went through this with road america).
Indeed. Totally my fault. I just wanted to make sure road america didn't eat my bike after i bought the next track day (a lesson i learned last year).