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', 'def5a340fa4b3cb6b603f1c123d9494e', '3.147.103.202', '1714072707', '1714072707', '/product_info.php/language/de/refID/2/info/p439_Reliefkarten-Konfigurator.html')

[XT SQL Error]