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', '1b5d11f0b1416b7dc13b612e58398967', '3.149.234.141', '1714163118', '1714163118', '/product_info.php?info=p205_Brass-Mysteries.html&XTCsid=f14882bc03b87e844afdf80aaa54462a')

[XT SQL Error]