At server startup, the server has discovered that the database information was written by an earlier version of the server program and is not compatible with this version. To automatically upgrade the server database to this version of the server program, the UPGRADEDB parameter must be specified when starting the server.
The server ends.
Refer to installation instructions for specific information on precautionary measures that you may want to take to back up the database prior to upgrading it to the current server level. After you have taken these measures, start the server and specify the UPGRADEDB parameter. This parameter only needs to be specified once to start the server, and should NOT be included in any automated programs that start the server.