1366 - Incorrect integer value: '' for column `shop_db3`.`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', 'bcc2597b80584a129960a67b476269fc', '3.234.212.253', '1711711625', '1711711625', '/redirect.php?action=product&id=247&XTCsid=7541ba64dfef2679c790315e735061c1')

[XT SQL Error]