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', 'j1ipehsk0n17hc87418s1avpp4', '18.118.82.212', '1746772575', '1746772575', '/product_info.php?info=p45_802219-Huehnerklappe--Frueh-auf-.html')

[XT SQL Error]