1366 - Incorrect integer value: '' for column `sql12320`.`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', 'e59c842672fed3aad61a27c243280671', '3.83.188.254', '1585989303', '1585989303', '/shop/ifshop_content.php/coID/8/product/Sitemap')

[XT SQL Error]