It looks to me like you fill out a bunch'o'stuff, hit the 'I agree' submit button, it will generate some nice customised letter you can (snail)mail away. The bottom of the page (below the submit button) says "Please read your Declaration carefully when it is returned to you". (My emphasis). That text points to the whole 'click submit, get a nice generated letter' thing.

And sure enough clicking the submit button causes the error. Karsten will have the ultimate word on the proper behaviour of the page, I guess.

Norman: If I threatened to kill myself every time somebody called me dumb, I should be dead a hundred times over by now. Put the gun down.