Unfortunately a recent crash caused a lot of the characters logged in to become corrupt, meaning they would no longer show up in the character selection list. Thankfully we have a working backup from last Sunday, so the setbacks should be minimal. Nonetheless we regret and apologize for the inconvenience.
If you are one of the people affected by this, please post your login and the character name in this topic and we'll get around it as soon as possible:
https://www.nwnravenloft.com/forum/index.php?topic=51768.0Sincerely,
Søren / the server team