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', '7df5fd919b1fcff69e02b428ae421b14', '18.217.228.35', '1713470934', '1713470934', '/product_info.php/language/de/info/p2990_Belgium-Relief-Map.html')

[XT SQL Error]