How to avoid error code when booking at 8am?

[VGCgroupie]

No dwarfs. But I didnt get to book, maybe thats why. The room I was trying to book became unavailable between 2am and a couple minutes prior to 8am. The night prior was unavailable at 2am so your guess is as good as mine on how that happens.

 

[Brian Noble]

If the room category is rare enough, someone might have extended a stay, and if they were the only person checking out that day, it removes the day from inventory.