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', '16d80b2032bcad201ca9ecb4e80bc17f', '18.188.20.56', '1713959549', '1713959549', '/index.php/language/de/cat/c29_Continents.html')

[XT SQL Error]