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', 'dfde4c1dda80ef77118363c4f3e52330', '18.218.234.83', '1714171530', '1714171530', '/product_info.php/language/en/info/p4004_Afrika-Reliefkarte.html')

[XT SQL Error]