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', '956b16c05daa3daa61ab6e48e441f1b6', '3.147.66.178', '1714001972', '1714001972', '/product_info.php?info=p228_Auf-Wiedersehn.html&XTCsid=c7f035e02971a7df32ae13cabef322ff')

[XT SQL Error]