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', '187b690df8eb3b564bef9e217736343f', '3.144.238.20', '1714179079', '1714179079', '/product_info.php/info/p1624_Ghana-Satellitenbild.html')

[XT SQL Error]