1366 - Incorrect integer value: '' for column `shop_db3`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '5e096e02ff78e646578049a75d2f8470', '54.210.83.20', '1711678510', '1711678510', '/checkout_shipping.php?XTCsid=8431cc383ca4da55e69d814d1f9a8725')

[XT SQL Error]