1366 - Incorrect integer value: '' for column `shop_db3`.`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', '3c68becec800fa04dd44b2255a368cc1', '18.119.131.178', '1714039264', '1714039264', '/popup_content.php?coID=1&XTCsid=7449276e387898a36bd6271988bac6c7')

[XT SQL Error]