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', 'a2b5029bf636167cd79043512a81d526', '3.138.138.144', '1713242332', '1713242332', '/product_info.php/info/p3124_Frankreich-Reliefkarte.html')

[XT SQL Error]