1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', 'ea0aa2757bfcea8abbff2eda359f47f8', '18.97.14.81', '1772987194', '1772987194', '/')

[XT SQL Error]