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', 'oeqsjcjccaqldnlh8ek5intve1', '18.191.8.38', '1747112151', '1747112151', '/product_info.php?info=p637_806323-Wachsbehaeltereinsatz-fuer-Bruehkessel-100-Liter.html')

[XT SQL Error]