Explanation: nbpushdata cannot find a recognizable EMM database version in the EMM database, and cannot initialize with the database currently in place.
Examine command output, debug logs, and system logs for a more detailed message on the error.
From catalog backups or another source if available, restore an earlier version of the database file: /usr/openv/volmgr/database/volDB (UNIX and Linux) or install_path\Volmgr\database\volDB (Windows). Then restart vmd.