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', '2a6383ceb8aebcb51bfcfff3dbc4ec56', '3.142.249.73', '1713604884', '1713604884', '/index.php/language/de/cat/c44_3D-Maps.html')

[XT SQL Error]