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', '954dca534bfc3df6c3b5e7364bea30d3', '13.58.39.23', '1713942158', '1713942158', '/product_info.php?info=p320_Easy-Tunes--F-Instrumente-.html&XTCsid=7593f4da55114442760e17ad10225a85')

[XT SQL Error]