1366 - Incorrect integer value: '' for column `shop_db3`.`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', '948120956175ff1fd6ed80e030f346d7', '18.208.172.3', '1711654607', '1711654607', '/advanced_search.php?XTCsid=9905f496dafd7c1604ee1758883b5a9f')

[XT SQL Error]