Error(20,56): PLS-00049: bad bind variable 'NEW.NEW_NAME' - sql

Question

I am facing this error while creating a trigger.
error - Error(20,56): PLS-00049: bad bind variable 'NEW.NEW_NAME'
if anyone can help it will be appreciated.
Please refer to my code below
Thanks in Advance :)
CREATE OR REPLACE TRIGGER insert_update_delete_employees AFTER
INSERT OR UPDATE OR DELETE ON employees
REFERENCING
OLD AS old
NEW AS new
FOR EACH ROW
ENABLE DECLARE
v_user VARCHAR2(20);
v_count NUMBER;
v_date VARCHAR2(20);
BEGIN
SELECT
user,
to_date(sysdate, 'DD/MON/YYYY HH24:MI:SS')
INTO
v_user,
v_date
FROM
dual;
SELECT
COUNT(1)
INTO v_count
FROM
employees;
IF updating THEN
INSERT INTO audit_table (
table_name,
user_name,
event,
event_date,
table_count,
new_object_name,
old_object_name
) VALUES (
'EMPLOYEES',
v_user,
'UPDATE',
v_date,
v_count,
:new.new_name,
NULL
);
dbms_output.put_line('Table data has been update by user ' || v_user);
SELECT
COUNT(*)
INTO v_count
FROM
employees;
ELSIF inserting THEN
INSERT INTO audit_table (
table_name,
user_name,
event,
event_date,
table_count,
new_object_name,
old_object_name
) VALUES (
'EMPLOYEES',
v_user,
'INSERT',
v_date,
v_count,
:new.new_name,
:old.old_name
);
dbms_output.put_line('Table data has been inserted by user ' || v_user);
SELECT
COUNT(*)
INTO v_count
FROM
employees;
ELSIF deleting THEN
INSERT INTO audit_table (
table_name,
user_name,
event,
event_date,
table_count,
new_object_name,
old_object_name
) VALUES (
'EMPLOYEES',
v_user,
'DELETE',
v_date,
v_count,
NULL,
:old.old_name
);
dbms_output.put_line('Table data has been deleted by user ' || v_user);
SELECT
COUNT(*)
INTO v_count
FROM
employees;`enter code here`
END IF;
END;

Answer 1

As you are using sample database schema, So please use :new.first_name column instead of :new.new_name