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', 'a2741c3657cd42a97e34ce076e9edaed', '216.73.216.175', '1762153603', '1762153603', '/index.php/cat/c30_Laender.html/page/3')

[XT SQL Error]