1366 - Incorrect integer value: '' for column `db2lk5ot`.`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, http_referer) values ('', 'Guest', '00262e2eb479f498d5d893ac6e8f62724f28d3c6', '18.232.38.214', '1590870996', '1590870996', '/', '')

[XT SQL Error]