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', '5a0765e414be0e6c1caa332ae98724c1', '216.73.216.191', '1758172804', '1758172804', '/product_info.php/info/p3346_Australien-Reliefkarte.html')

[XT SQL Error]