Cause: An invalid package specification or stored subprogram was referenced. A package specification or stored subprogram is invalid if its source code or any database object it references has been DROPped, REPLACEd, or ALTERed since it was last compiled.
Action: Find out what invalidated the package specification or stored subprogram, then make sure that Oracle can recompile it without errors.
Cause: A PL/SQL compilation error has occurred. The numbers given for line and column are the location in the PL/SQL block where the error occurred.
Action: Refer to the following PL/SQL messages for more information about the error.