1366 - Incorrect integer value: '' for column `dogsdream`.`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', '949de247f5d3236cd3e4531c43843298', '216.73.216.130', '1763294516', '1763294516', '/shop/product_info.php/info/p18_BIO---Wildschwein.html')

[XT SQL Error]