1366 - Incorrect integer value: '' for column `directsmile_de_shop`.`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', '4081de0da6d5c8340cf548ea56b7dc85', '3.17.6.75', '1713280151', '1713280151', '/shop/index.php?cat=c7_Ready-made-Sets.html')

[XT SQL Error]