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', '6b34d11bfbb141df722b049517a5e600', '18.116.63.174', '1713910863', '1713910863', '/index.php/language/en/cat/c32_Welt.html')

[XT SQL Error]