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', '9b5c6bc5aedd20e53dc473dc5178a053', '216.73.216.145', '1760381678', '1760381678', '/index.php/language/en/cat/c33_Satellitenbilder-Digital.html')

[XT SQL Error]