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', 'iue10epvbjlaak6k4q6eii11m2', '216.73.216.102', '1751522221', '1751522221', '/')

[XT SQL Error]