1366 - Incorrect integer value: '' for column `usr_web74_1`.`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', '8ejga5bh1fdo308blnjtmg7pb2', '18.217.19.195', '1746773046', '1746773046', '/shopping_cart.php')

[XT SQL Error]