What happened to New Civ game guide: Siam thread?

[Lonecat Nekophrodite]

I've saw it on Civ7 General Discussion and it already has TWO PAGES of reply. and I've just hit 'reply' button after a lenghtly postings. but 'The thread is no longer exists'
What actually happened? Wrong date postings or what? or a drama before I even browse a thread throughoutly?

 

[Alexander's Hetaroi]

There was a slight error, but it's back now.

 

[Lonecat Nekophrodite]

OK Thank you.
Wrong referrence link error or what?