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', 'kg0v6q2qsiaj9dn5f6e1asm855', '3.147.73.35', '1713505117', '1713505117', '/login.php?XTCsid=kg0v6q2qsiaj9dn5f6e1asm855')

[XT SQL Error]