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', '8u6bp1o8587hr98mfes3u0la96', '3.22.101.207', '1748750880', '1748750880', '/product_info.php?products_id=46')

[XT SQL Error]