1366 - Incorrect integer value: '' for column `hbl_shop`.`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', '6cleig0a2sjcp8ad4hdh5gobd5', '216.73.216.179', '1751421733', '1751421733', '/product_info.php?info=p511_Energetische-Mischung-ohne-Huelsenfruechte-25kg-E.html')

[XT SQL Error]