1366 - Incorrect integer value: '' for column `ngtkeZ_web1104_2`.`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', '6l0q2r942uqsgji8b63ckr6k00', '216.73.216.159', '1791642614', '1791642614', '/content/en/Privacy-Notice.html')

[XT SQL Error]