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', 'b79a267e5e8848bf3060f5b97a040926', '216.73.216.148', '1755540886', '1755540886', '/product_info.php?info=p2727_Suriname-Reliefkarte.html')

[XT SQL Error]