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', '279c4d8d2398ad8bdd84a48edc6b35a2', '18.223.106.232', '1714092198', '1714092198', '/product_info.php?language=de&info=p247_Nessun-Dorma.html&XTCsid=1ac6c2897c9e1517fbc2b6cff40eabd3')

[XT SQL Error]