1366 - Incorrect integer value: '' for column `shop_db3`.`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', '1acab6cbc064047e20cb152ff76735ad', '3.141.24.134', '1714062620', '1714062620', '/checkout_shipping.php?XTCsid=41f283276f02c57a558016baf9b157ec')

[XT SQL Error]