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', 'f512e445ff18b6a320aa35a77c05610f', '18.117.196.184', '1714172975', '1714172975', '/product_info.php?info=p249_German-Folk-Medley.html&XTCsid=fbf10991e93a5b1cee6d3cdc21485899')

[XT SQL Error]