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', 'df790a892af7cf4059f6b6bb561661d0', '3.139.86.56', '1713537601', '1713537601', '/index.php/language/en/cat/c32_World.html')

[XT SQL Error]