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', '4cd8b72bede1f914c7234e71dca17f71', '3.138.204.208', '1714030702', '1714030702', '/product_info.php/language/en/info/p2684_Griechenland-Reliefkarte.html')

[XT SQL Error]