1366 - Incorrect integer value: '' for column `creatihu_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', 'b6ffbceba65b30dba691dd40351cb69c', '3.143.9.115', '1714048674', '1714048674', '/index.php?cat=c49_Gro--plakate--Plakatw--nde.html')

[XT SQL Error]