1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', 'a7e816ca6dab4dcf09fbe20fd4b2ceb1', '18.222.67.251', '1714093711', '1714093711', '/index.php?cat=c98_Werbe--Abschlu----Kirwa-Shi.html')

[XT SQL Error]