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', 'c66380e468b73a4c59a8e8715ab43b5d', '18.117.196.184', '1713528960', '1713528960', '/product_info.php?info=p318_Easy-Tunes--Bass-Instrumente-.html&XTCsid=18ef4d570fc05d4799b5475265fad7ac')

[XT SQL Error]