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', '3b57270abddac5f8fa97fd6b24d6675b', '216.73.216.145', '1760994601', '1760994601', '/index.php/language/de/cat/c35_Laender.html/page/2')

[XT SQL Error]