DB Package Insert Fails


I have flow written using DB package services. Flow starts with Connect, execuet SQl. After selecting the data, mapping the result set to db insert service $data field. But the insert fails with error message as follows.

com.wm.app.b2b.server.DBException: No info available for column ‘OBJECT_NAME’ in table ‘as_buffer_vh’.

But the table has the field same as the source table. Am I missing any thing in the flow or settings in the insert?.