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', 'fefa57f769883b2eaf8da2256a031bed', '18.97.14.89', '1764889762', '1764889762', '/')

[XT SQL Error]