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', '84b49bd7cc6e26e8f0bd4c00fe86ef81', '13.58.151.231', '1713524929', '1713524929', '/index.php/language/de/cat/c8_Reliefkarten-Poster.html')

[XT SQL Error]