1366 - Incorrect integer value: '' for column `abtecsho_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', 'nr50jbcs9iquao4q26ifuohek3', '18.220.44.17', '1746780104', '1746780104', '/shop_content.php/coID/99')

[XT SQL Error]