SERVER ADMINS - Advice Please

I have a player on my server who says he was at Level 30, had died and the game froze once the countdown go to zero. When he got back into the game, he says he was taken to the character creation screen to start over.

Thankfully, he was a member of a Clan, so he has gained access to his buildings etc, just missing his levels.

1, Can I restore just this one players character?
2, Can I at least give him his 30 Levels back without making HIM the admin?
3, Is this a known issue?
4, Has it happened to any of your players?