Invalid Identifier

I’m receiving an error of java.sql.SQLException: [wm-cjdbc30][Oracle JDBC Driver][Oracle]ORA-00904: “P”.“INSTANCEID”: invalid identifier

This error occurs using webMethods 4.6 with Oracle 9i as the TN database. The Oracle tables were created with the Oracle SQL from 4.6, the tables were initialized with init.xml. When I start up the server I get the error, but if we use Oracle 8i we run into no problems. Has anyone else experienced this? What was the resolution? Please let me know. Thank you