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', 'f1d6e84d66dbd2b5828d8d11a9cb4638', '216.73.216.8', '1757975918', '1757975918', '/product_info.php/language/de/info/p2846_Satellitenbild-Poster-110x78-cm.html')

[XT SQL Error]