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', '0352bc04216d00a60d13f29b44d04a10', '3.230.76.153', '1711658109', '1711658109', '/product_info.php/info/p3986_Afrika-Reliefkarte.html')

[XT SQL Error]