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', '235f681f78e5a5e762ea1ace800a65b9', '3.135.205.146', '1713560328', '1713560328', '/product_info.php/language/en/info/p3987_Europa-Reliefkarte.html')

[XT SQL Error]