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', 'f96a41a61df80fdaf6e94dacb970fa2d', '3.144.248.24', '1714128480', '1714128480', '/product_info.php/info/p2807_Ist-Faeroeer--Reliefkarte.html')

[XT SQL Error]