The error occurs because there is no DB2 database alias configured on the machine where you run Intelligent Converters software. This situation may take place when the system uses IBM Data Server Driver for ODBC and CLI to connect to DB2 database. It must be configured manually since it is not part of the integrated IBM Server or Client environment.
You can learn how to configure connection for ODBC and CLI IBM Driver in article Connecting to DB2 database
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