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', '6a3a373ffae5c97e72b69c2cbbe811b2', '18.204.56.185', '1659978012', '1659978012', '/product_info.php/info/p439_Reliefkarten-Konfigurator.html')

[XT SQL Error]