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', '8d8ddd9e7cc2ab8fa68933c9f9595e25', '18.188.20.56', '1713622965', '1713622965', '/product_info.php/language/de/info/p1649_Switzerland-Satellite-Image.html')

[XT SQL Error]