1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', 'da37eef27d95ad23b3c2eef86b2e07c4', '3.238.228.237', '1711726453', '1711726453', '/product_info.php/info/p3070_Fiji-3-Reliefkarte.html')

[XT SQL Error]