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', 'e61165291fa57b5c00a3b5e9beedb91f', '216.73.216.148', '1755546440', '1755546440', '/product_info.php?info=p1650_Armenien-Satellitenbild.html')

[XT SQL Error]