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', 'd32b62b6726e9da37179c09a1a74d402', '3.239.59.193', '1710842727', '1710842727', '/index.php/language/en/cat/c43_Hoehendaten.html')

[XT SQL Error]