So because of the maintenance, I tried logging on a few times (over the span of several hours).
As I managed to log in, I couldn't go to Haven (50/51/52 because I'm from Austria = auto-connect to German Haven).
But I could join a friend, who was in Haven 1. Another of my friends asked me if missions were doable for me... it seems like that was a problem, too.
Also, the energy market was offline.
Well, I saw "Tech Blue Pompom Snow Hat" in the auction house for 132kcrw current bid, which I had bid on before. It clearly displayed "very short" as its duration.
So I accepted the Crowns from biddings that I got overbid on and also from materials I've sold to gather enough Crowns to bid once again (the rest of my Crowns was in the energy market that was still down).
138k Crowns were deducted from my balance, but the highest bid on that item did not change. Also, it didn't display that I was the highest bidder.
Also, if I looked for that item in the search in the category tab on , it wasn't there. It should've been there.... since it was on "very short".

Well, maybe this was an error caused by the maintenance status. I logged off, tried to log in and couldn't... for some minutes.
After I managed to log in once again, my Crowns were still gone, but the auction updated, it showed the highest bid at 138k Crowns... but it wasn't my bid. Strange. Also... the duration changed to medium?
There was another announcement in the chat, the server would restart once again in 9 minutes, I decided to log off and wait for that.

I logged in once again and could access the energy market, I canceled some of my offers and wanted to try bidding on it again. I did, I bid 144k Crowns and became the highest bidder.
The 138k Crowns from before are still gone, though.

You could say I was careless to use the system while, clearly, the server wasn't fully operational (energy market was down, some Havens were not accessible).
Well, yeah. I'd still like to know what happened with those 138k Crowns and if I'll get them back some time.

Edit: Oh btw, I didn't use this knight - the name of the knight I used is "Velleta"
Edit2: I won the auction with that 144k Crowns bet.
Edit3: Forums are still... like that? Is that because of the maintenance? Everything's white, CSS-stylesheet missing?