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', '9865f92b7c143c0baf7f4c9ba3fcb75b', '216.73.216.8', '1757964599', '1757964599', '/product_info.php/info/p1856_Marshall-Is--Satellite-Image.html')

[XT SQL Error]