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', 'uc2mpddl6e8rtl414970se2252', '18.222.25.32', '1746784607', '1746784607', '/product_info.php?info=p54_800673-Bauschubkarre-75-Liter.html')

[XT SQL Error]