I get "Error: You have arrived at this page incorrectly. Try going here." if I click Dungeons TOME in the upper left corner after generating a new dungeon.
Opening this page in another browser it seems that they are loading that Google CAPTCHA widget; maybe your browser is blocking it (as mine did) or you have disabled third-party cookies.
fwiw if a page doesn't load with third-party cookies disabled, it should be considered broken
fwiw if a page doesn't load with third-party cookies disabled, it should be considered broken