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', 'accf36617cdad0801729a92204412b37', '3.146.255.127', '1714003743', '1714003743', '/product_info.php/language/de/info/p2652_Spanien-Reliefkarte.html')

[XT SQL Error]