Well, it does say it cannot be repaired, so I fear that the db is lost.
This probably happened during a file transfer. Was the db copied to cd or over the network ? Sometimes data can be damaged that way.
The only thing I can think of is copying the db to the server (physically, not via Notes - which just might compound the damage) and have the server do a check (with the Fixup command).
I hope there is a backup.
Pascal.