Please do read the threads about this.
There's already at least two or three, and several more with posts explaining it.
It's tiring with people repeatedly asking about something which a little reading would easily answer.
The site is down right now. The files are being corrupted very regularly, so nijis is going to fix that by changing the way in which the data for your character's house is stored. This will take time. The game should be playable soon enough.