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', '0bed3145e4111d1a236c8004081a5a75', '54.144.95.36', '1711615528', '1711615528', '/shop_content.php?coID=8')

[XT SQL Error]