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', '8c5941deeddaac33db175ed89500a14c', '54.145.82.104', '1711718441', '1711718441', '/advanced_search.php?XTCsid=842cd293d4e43dd66c33a18be5c47b55')

[XT SQL Error]