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', 'evek6ulr3pa4rnkdf9jtkpqeg4', '216.73.216.165', '1751597756', '1751597756', '/password_double_opt.php')

[XT SQL Error]