1366 - Incorrect integer value: '' for column `pella-ware`.`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', 'ti5j1kmi38i8asgocr4opc0kg0', '34.237.75.165', '1711691203', '1711691203', '/login.php?XTCsid=ti5j1kmi38i8asgocr4opc0kg0')

[XT SQL Error]