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', 'mfk6i2lcnd6qtca9tvhvvasvn2', '18.216.186.164', '1714018867', '1714018867', '/Gitternetz-Kerze/Gitternetz-Kerze-Goldgelb::712.html')

[XT SQL Error]