1366 - Incorrect integer value: '' for column `hbl_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', 'dj6scicej93j10qerqjb5lv7g6', '3.135.223.175', '1746779397', '1746779397', '/popup_content.php?coID=1')

[XT SQL Error]