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', '61a5bcf0708ed3d9b2903a339ff40df4', '18.204.56.185', '1659973968', '1659973968', '/index.php/language/de/cat/c37_World.html')

[XT SQL Error]