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', '64a5d8a8a549ed57d2ecee74009f8bc5', '18.116.85.72', '1714037915', '1714037915', '/product_info.php?info=p52_Trompeten-Galopp--Polka-.html&XTCsid=752467afa49d1c2decc281986e95df51')

[XT SQL Error]