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', 'tg0r63cntdds36ddpfcljsm7r0', '54.226.126.38', '1711679178', '1711679178', '/login.php?XTCsid=tg0r63cntdds36ddpfcljsm7r0')

[XT SQL Error]