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', 'ce062f5e35e73c28c122e5fc3714b180', '216.73.216.3', '1767386178', '1767386178', '/index.php/language/de/cat/c42_Vector-Maps.html')

[XT SQL Error]