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', 'd17556b2ae4fe0bf4c8c60be87ae6ea6', '3.138.114.94', '1713905329', '1713905329', '/product_info.php/language/de/info/p3256_Japan---Shikoru-Reliefkarte.html')

[XT SQL Error]