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', 'f976986594a34e5f502417850082bb45', '44.221.43.88', '1711646086', '1711646086', '/shop_content.php?coID=4&XTCsid=556213bd995aa263df7318e539f41bde')

[XT SQL Error]