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', 'd29bc43e18c4ade7cc2baf06a5e53882', '216.73.216.116', '1752280636', '1752280636', '/shop_content.php/language/en/coID/4')

[XT SQL Error]