What should not have happened happened anyway. The dedicated server hoster I had signed up with was not as reliable and serious as I thought. So I had to move to another server (which took two weeks to set up, damn). All this caused the blog to be down for a long time, and a CHARSET problem did not make matters better. Anyhow, the blog is up and running again.

The new server is hosted by hetzner.de, by the way.