1366 - Incorrect integer value: '' for column `shop_db3`.`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', '365ee1660f802132b3c6f1190ddd6b94', '18.221.41.214', '1713563938', '1713563938', '/product_info.php?info=p302_Frecher-Lauser.html&XTCsid=12ab6c593489deceb1c19806497af77d')

[XT SQL Error]