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', 'ff72c1e4c1c99aa6caa083f14fadc643', '18.190.156.212', '1713479911', '1713479911', '/product_info.php/info/p2843_Ist-Faeroeer--5-Reliefkarte.html')

[XT SQL Error]