1366 - Incorrect integer value: '' for column `hbl_shop`.`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', '07d04hni85fsceb9pi9ve34td1', '3.22.70.102', '1746767767', '1746767767', '/shop_content.php?coID=3')

[XT SQL Error]