1366 - Incorrect integer value: '' for column `hbl_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', '2dihtgbv1q4km9au8ss84ud0u4', '3.17.157.68', '1746785132', '1746785132', '/product_info.php?info=p635_K296200-Kalk----Universalspritze-Edelstahl.html')

[XT SQL Error]