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', '6db517b11814a6b941cb330563d69e39', '3.23.101.60', '1714187977', '1714187977', '/product_info.php/info/p1721_Ist-Faeroeer--2-Satellitenbild.html')

[XT SQL Error]