To resolve the issue:
Option I: Restore the smmsg.nsf database
• If a backup of the smmsg.nsf database exists, restore it in \Data\smd.
Option II: Copy smmsg.nsf database from another server
• If a backup of smmsg.nsf does not exists, copy the database from another Domino server with SMD 3.0/5.0 and then replace the corrupted database in \Data\smd.
• If a copy does not exists on the other database, provide the user with one.
Option III: Reinstall SMD 3.0/5.0
• Reinstall SMD only if Options I and II is unable to resolve the issue.
Note: Once the issue has been addressed, update SMD to the latest patch, scan engine, and pattern files.