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', '2b3c3ee8f8560015a9e1389c5a7cf6b2', '3.235.199.19', '1710814541', '1710814541', '/product_info.php/info/p2645_Afghanistan-Reliefkarte.html')

[XT SQL Error]