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', 'd793970ce510432b15f671ba6a1eee54', '3.82.58.213', '1711711178', '1711711178', '/shop_content.php?coID=4')

[XT SQL Error]