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', 'cfa0dea6213df2ecdd0620b207f9b9b6', '216.73.216.198', '1752880929', '1752880929', '/product_info.php/language/en/info/p1571_Deutschland-Satellitenbild.html')

[XT SQL Error]