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', '40359d55e611598fce0c00a80a8d8c51', '3.138.102.178', '1713999006', '1713999006', '/product_info.php/language/en/info/p3991_Nordamerika-Reliefkarte.html')

[XT SQL Error]