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', '7855c55533eb4066c8ce72b6be518415', '18.97.14.91', '1752109092', '1752109092', '/')

[XT SQL Error]