@pitaj Thanks for replying Pita.
I did ask quite a while ago now, I will try and find my post later
I am not moaning in anyway, this software is free and it's been great to be honest.
I am not sure what's causing the issue exactly, when I download the o2Auth plugin and then also enable on my forum, both parts go offline.
I then have to FTP into my site and remove from both ends.
Ah well. I guess we can assume that this isn't a problem for most. I'm going to stick with NodeBB for public facing posts (It is a forum after all).
For sharing sensitive data I'm going to use other more secure platforms (Nextcloud).
In nodebb's case it will just need the A (or E... which will be nginx. Don't ask me why the E stands for nginx, as that is how they named the stack. Maybe because it is pronounced engine-x) and the M... for mongodb