1366 - Incorrect integer value: '' for column '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', 'kvkmnlh2ke59kij2juj27tb6a5', '216.73.216.230', '1781282195', '1781282195', '/xtshop/account_password.php')

[XT SQL Error]