1366 - Incorrect integer value: '' for column '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', '4915be1ba99c5dda3b0ab736310a059f', '3.227.229.194', '1711697366', '1711697366', '/redirect.php?action=product&id=63')

[XT SQL Error]