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', '58db967d4dd3177dae2d46ffd147ffbb', '3.139.72.78', '1713923510', '1713923510', '/product_info.php?info=p298_Bei-uns-in-Bayern.html&XTCsid=887fff7384999e8c958f14224ebe6b7c')

[XT SQL Error]