Thanks for playing the game! Think there's a bug stopping you from clicking on the last days. sometimes it works... sometimes it doesn't... Guess you can call that chaotic haha. (try playing it again and it might let you get passed those days)
As I mentioned, I managed to finish the game (probably as intended). I restarted it a couple of times but it didn't change anything. But your game is absolutely playable, don't worry!