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', 'a0809e34418e7a7115bc4be6f8e1ccdb', '3.235.145.95', '1711704924', '1711704924', '/product_info.php/info/p3388_Aegypten-Reliefkarte.html')

[XT SQL Error]