You had your warnings.
You had your chance to stop.
I've closed down the entire site. You can't proceed anymore. Did you think I didn't know what you were up to? Did you think I didn't know what BBCode and spoiler tags were?? I'm the web administrator for the World Wide Web's number one ranked website for Nuthatches, for god's sake! I saw it all!
It probably feels like all that work, each and every of those puzzles, was leading up to this exact moment.
Sorry, but it's not. You're not getting nut back. Take that scoundrel knut and go home.
I've taken the opportunity to completely remove the password field from the page.
Good luck solving puzzle 12 without it.