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', 'fdf9aa3d193a83b6b6334f7c2a3f0f03', '3.145.94.251', '1714184929', '1714184929', '/product_info.php/language/de/info/p3996_Suedamerika-Reliefkarte.html')

[XT SQL Error]