1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '0de1c880a59c9a858863109f4c77a560', '3.92.96.247', '1711656543', '1711656543', '/index.php/language/en/cat/c30_Countries.html')

[XT SQL Error]