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', 'fk6nai68jd75fvqr21g97en6d5', '3.145.101.53', '1746772369', '1746772369', '/product_info.php?info=p40_801960-Brutautomat-Typ-2.html')

[XT SQL Error]