wrong number or types of arguments

PROCEDURE PROCESS_ITEM_EXP_STATUS_UPD(in_inquiry_id                IN inquire_all.inquiry_id%TYPE,
                                      in_item_populate_status      IN inquire_all.item_populate_status%TYPE)
IS
v_CurMonth         number;
v_PrevMonth        number;
v_cursor           number;
v_row              number;

BEGIN
v_CurMonth := to_number(to_char(sysdate, 'MM'));
IF (v_CurMonth=1)
  THEN
    v_PrevMonth := 12;
  ELSE
    v_PrevMonth := v_CurMonth -1;
END IF;

   BEGIN
     v_cursor := dbms_sql.open_cursor;
     /*dbms_sql.parse(v_cursor, 'UPDATE INQUIRE_' || v_PrevMonth  || v_sqlStr, dbms_sql.NATIVE);*/
     /*dbms_sql.parse(v_cursor, 'UPDATE G3WEB.INQUIRE_ALL_2 SET ITEM_POPULATE_STATUS = '||[color=#FF0000]in_item_populate_status[/color] ||',ITEM_POPULATE_DATE = sysdate WHERE INQUIRY_ID = '||in_inquiry_id || ' AND FORM_COMPLETE_STATUS = ''Y''', dbms_sql.NATIVE);*/
     dbms_sql.parse(v_cursor, 'UPDATE INQUIRE_' || v_PrevMonth  ||' SET ITEM_POPULATE_STATUS = ' || in_item_populate_status || ' , ITEM_POPULATE_DATE = sysdate WHERE INQUIRY_ID = '||in_inquiry_id || ' AND FORM_COMPLETE_STATUS = ''Y''', dbms_sql.NATIVE);
     v_row := dbms_sql.execute(v_cursor);
     dbms_sql.close_cursor(v_cursor);
   EXCEPTION
     WHEN others THEN
        dbms_sql.close_cursor(v_cursor);
        RAISE_APPLICATION_ERROR(-20200, '22Error in updating table [INQUIRE_'||v_PrevMonth ||'] SQLERROR: ' || SQLERRM(sqlcode));
   END;
COMMIT;
END PROCESS_ITEM_EXP_STATUS_UPD;