1366 - Incorrect integer value: '' for column `db160153`.`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', '90a48060kq4aoabc8uejt0vbm1', '3.229.124.236', '1711653998', '1711653998', '/Grosse-Kugel-Kerze/Grosse-Kugel-Kerze-Weiss::672.html')

[XT SQL Error]