OK, you let your domain name expire and then renewed it.
All the ISPs will have dropped it from their DNS records the second it expired.
Bravenet will have published the renewal when it happened but the ISPs will restore it to their DNS records when they choose. That may be within the hour or the next day or even longer. The rule of thumb when I started was to allow 72 hours for a name to be propagated across the web.
I see your site. If you are still having a problem try clearing your temporary internet files as the error page may be cached by your browser.
Its best to renew a domain about a week before it expires.