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', 'e982318b1cec020a20b5df971f4e536e', '216.73.216.148', '1755546306', '1755546306', '/product_info.php?info=p3179_Java-Reliefkarte.html')

[XT SQL Error]