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', 'f6109c275e37c10126811eff4dcfe220', '3.144.172.115', '1714163816', '1714163816', '/product_info.php/language/en/info/p4000_Asien-Reliefkarte.html')

[XT SQL Error]