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', '35cqqki0ecfpsrk5g9is7uiee7', '3.90.202.157', '1711727394', '1711727394', '/login.php?XTCsid=35cqqki0ecfpsrk5g9is7uiee7')

[XT SQL Error]