The language table <language table name>, for the base table <base table name>, does not have rows for the language <language code>.
The application connection for the session specifies a PeopleSoft language code, and the source table listed in the error message does not have related data for the language you specified. When there is no data for the specified language, the Integration Service returns data from the base source table.
If you require data in the specified language, that data must be entered into the PeopleSoft system. If you want data in a different language, you can edit the application connection or create a connection for a different language code.