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', '6fe63f4f6e3ca56cd6ba93fcb51e0d55', '18.219.236.199', '1714072722', '1714072722', '/product_info.php?info=p205_Brass-Mysteries.html&XTCsid=8431cc383ca4da55e69d814d1f9a8725')

[XT SQL Error]