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', '1511a31df23058bdf676f99a2ecace67', '18.223.32.230', '1713295812', '1713295812', '/product_info.php/language/de/info/p2811_Ist-Faeroeer--2-Reliefkarte.html')

[XT SQL Error]