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', 'dfaa9f7f9bae763faa622a26d7ca6160', '216.73.216.35', '1751518575', '1751518575', '/product_info.php/language/de/info/p1854_Norfolk-I--Satellite-Image.html')

[XT SQL Error]