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', 'd6s235nh7n3eicl66galq0bk27', '18.206.238.189', '1711702874', '1711702874', '/Pyramidenkerze-30-cm/Pyramide-Groesse-M-Goldgelb::770.html')

[XT SQL Error]