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', '26491c31824aae7fb6182b75a33b54df', '44.222.149.13', '1710824862', '1710824862', '/index.php/cat/c38_Map-Konfigurator.html')

[XT SQL Error]