WebADI improter Lookup error message

Hi,

I'm facing the new error in Error Looup message with these errors

• An error has occurred while running an API import. 231:TEST_IMPORTER_ERRL
  SQL statement returned no rows when values are expected.

My setups are

select meaning FROM FND_LOOKUPS WHERE LOOKUP_TYPE ='XX_TEST_ERROR' AND LOOKUP_CODE =$PARAM$.RESULT

Parameter Name   Reference Name Data type  source    value

RESULT                RESULT              VARCHAR2  Interface Table   XX_TEST_IMPR_INTERFACE.RESULT

Any clue what i'm missing.

Thanks

Suresh.