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', 'rq7sjme4fgiuj3i21g783ta9h7', '3.147.73.112', '1746111838', '1746111838', '/product_info.php?info=p1147_African-Black-Soap-eckig.html')

[XT SQL Error]