'.$link_content.''; return $out; } ?>1366 - Incorrect integer value: '' for column `rubikmazeshop`.`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', 'd28f9c641a0ef81e09b4dc071f040954', '44.222.131.239', '1726795128', '1726795128', '/rubikmazeshop/')

[XT SQL Error]