Fujitsu ScanSnap N1800 Operating Manual page 294

Code
7A040023 Restoration from this version
of backup file is not possible.
Message
294
Action
The backup file saved by executing the
AmBackup.exe command in the
Central Admin Server of the previous
version cannot be restored with the
AmRestore.exe command in the
Central Admin Server of new version.
Refer to "5.17.4 Migrating Data to an
Updated Version of the Central Admin
Server Software" (page
backing up again.
5.18 Messages
285), and try