1366 - Incorrect integer value: '' for column `db162720`.`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', 'rvnrivpftr6s159h14krl58im6', '3.87.133.69', '1711616057', '1711616057', '/product_info.php/info/p91_.html')

[XT SQL Error]