MYSQL Delete event is not running

I have below database tables,

Tables Definition

A – order_dateils :

• id
• order_bar
• description
• payment_status
• created_at

B – invoices :

• id
• invoice_id
• status
• created_at

and created below event to delete data older than 2 months

DELIMITER //
CREATE EVENT 
IF NOT EXISTS daily_delete 
ON SCHEDULE EVERY 1 DAY STARTS '020-09-13 04:00:00' 
DO 
BEGIN 
    DELETE 
    FROM bariq_DB.invoice 
    where timestampdiff(MONTH,created_at,NOW()) > 2 and payment_status = 2; 
    delete from bariq_DB.order_details 
    where timestampdiff(MONTH,created_at,NOW()) > 2 and payment_status = 3; 
END;//
DELIMITER ;

and I checked : SHOW PROCESSLIST

+-------+-----------------+-----------+-----------+---------+-------+-----------------------------+------------------+
| Id    | User            | Host      | db        | Command | Time  | State                       | Info             |
+-------+-----------------+-----------+-----------+---------+-------+-----------------------------+------------------+
|     5 | event_scheduler | localhost | NULL      | Daemon  | 61763 | Waiting for next activation | NULL             |
| 34948 | root            | localhost | baridi_DB | Sleep   |   984 |                             | NULL             |
| 34949 | root            | localhost | baridi_DB | Query   |     0 | starting                    | SHOW PROCESSLIST |
+-------+-----------------+-----------+-----------+---------+-------+---------------------------

But the events is not deleting any thing that matches the conditions, what Im missing here?

Any help will be much appreciated