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', '2121876958fc9eba85662718a3389018', '3.237.91.98', '1711662404', '1711662404', '/product_info.php/language/de/info/p1826_Guadeloupe-2-Satellite-Image.html')

[XT SQL Error]