1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '4e01495289f3125d10bf27a1188ece8b', '3.145.111.183', '1713604149', '1713604149', '/product_info.php/language/en/info/p3241_Albanien-Reliefkarte.html')

[XT SQL Error]