1366 - Incorrect integer value: '' for column `db162720`.`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', 'f36rbjhsemb3f5e9g5dv8n4ni1', '44.200.30.73', '1659963660', '1659963660', '/index.php/cat/c9_.html')

[XT SQL Error]