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', 'd1da61603fabec3f1d2098588f57b46d', '18.117.70.132', '1714111384', '1714111384', '/product_info.php?info=p298_Bei-uns-in-Bayern.html&XTCsid=7449276e387898a36bd6271988bac6c7')

[XT SQL Error]