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', '08c73ef6a38e2d7a9c1ee4c33e28a2a5', '3.147.103.8', '1713499749', '1713499749', '/product_info.php/language/de/info/p3091_Faroe-Is--5-Relief-Map.html')

[XT SQL Error]