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', '38d853cd83d7f08bd2e5a545fcab0001', '18.232.62.134', '1711689472', '1711689472', '/shop_content.php?language=en&coID=7')

[XT SQL Error]