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', 'knq5vp9a93rm6tg83a218bk3m1', '18.222.218.204', '1746782873', '1746782873', '/product_info.php?info=p581_806026-Gruenfutterschneider--Haecksler.html')

[XT SQL Error]