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', 'dafd7aeea7a7577c9d43472cf8addc1e', '18.116.90.141', '1713988638', '1713988638', '/index.php/language/de/cat/c8_Relief-Map-Poster.html')

[XT SQL Error]