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', 'su28iccdmj7cq9qj9cm6jrphh0', '34.207.180.141', '1711728012', '1711728012', '/login.php?XTCsid=su28iccdmj7cq9qj9cm6jrphh0')

[XT SQL Error]