As you might have noticed, the forum is currently not available. It seems as if we're experiencing hardware problems, but we are working on resolving them as soon as possible. Please accept my apologies for the inconveniences this might cause and be patient...
UPDATE: It turned out that a hard disk had been crashed. Luckily the data was safe due to the RAID system used. The HDD has been replaced, so the server is back to normal operation.