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', '65026328e14fa913bc6b67a57511ce67', '216.73.216.8', '1758105949', '1758105949', '/product_info.php/info/p1578_Papua-New-Guinea-Satellite-Image.html')

[XT SQL Error]