1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '4c99d7928d3d10025cc0f6568eb61e3c', '18.116.8.110', '1713461140', '1713461140', '/shop_content.php/language/de/coID/25')

[XT SQL Error]