1366 - Incorrect integer value: '' for column `pella-ware`.`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', 'c1f6a49c5ce694b933794306027d260f', '18.118.254.94', '1714149513', '1714149513', '/shop_content.php?language=en&coID=1')

[XT SQL Error]