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', '40036fc3f1cb00a0d3f3e93bba64af4c', '3.145.42.94', '1714113702', '1714113702', '/index.php/language/de/cat/c30_Countries.html')

[XT SQL Error]