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', 'be599383024990335ed8f8106c6de845', '18.222.115.120', '1713554911', '1713554911', '/product_info.php?info=p247_Nessun-Dorma.html&XTCsid=7541ba64dfef2679c790315e735061c1')

[XT SQL Error]