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', 'kgne2rkbr3q2b8jg9tj7sbfdm5', '54.234.146.26', '1711692013', '1711692013', '/login.php?XTCsid=kgne2rkbr3q2b8jg9tj7sbfdm5')

[XT SQL Error]