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', 'cqd2k3q9jr0hsenml0ktra5bf4', '3.138.141.202', '1713438644', '1713438644', '/Kerze-Spiralkugel/Spiralkugel-Rot::655.html')

[XT SQL Error]