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', 'b5df140fa4148178faa2017a869b91d4', '3.22.181.211', '1713534959', '1713534959', '/product_info.php?info=p324_Jericho---Lippenhantel.html&XTCsid=41f283276f02c57a558016baf9b157ec')

[XT SQL Error]