Well I am using my free .be domain and its randomly jsut not working. I dont get that many people to my website that it would do that to me. its the domain too, not the site. Site still works. Its from: http://registratie-domein.be/ or a site thats related to that.... so how long is this gonna last? its been a few hours..
The server they have you running on may be down, or perhaps they have ended your service. Wait a few more hours, if there is no improvement, Email the webmaster. Cheers.