Seems like the hosting provider didn't like the fact that we were using an external database server, or they just changed something on their network. In either case, it was impossible to get a connection through to the database.
As a result, the entier messageboard is now running on my server, which would hopefully mean, that we will not get any further problems with the hosting provider.
Everyone would need to log in again, as the auto login cookies have been invalidated because of the move.
The old URL as linked to on the official website, will remain valid, however, the board is also accible through a simpler URL,
http://offmb.nikkiwebster.dk/Sorry for the inconvinience.