I'll put this update on the live server shortly.

The Fire Pit event will now happen every day at 12:00 (Midday) and 00:00 (Midnight).

Fixed the announcements for the Fire Pit event. There will be announcements 15, 10, 5 and 1 minute before and then when it starts and ends.
The chest will now spawn as the event starts, not before.
The buff will be cast only once to everyone online at the time of event start. Anybody logging in after it has started will not get the buff.
The buff will be removed when the event is over to stop confusion.