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', '91db1b1b39e0ace60759b9436cc40b74', '52.15.112.69', '1713995885', '1713995885', '/index.php/language/en/cat/c30_Countries.html/page/5')

[XT SQL Error]