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', 'a23752d7e8cea61cfb1799e76433241a', '3.145.105.105', '1714247784', '1714247784', '/product_info.php?info=p310_Uebungen-fuer-Hoehe--Kraft--Ausdauer--Flexibilitaet---Ton.html&XTCsid=1202c0e39938270633bf0434d1a34bdb')

[XT SQL Error]